DRTDEVL
SPAM Town, USA
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Joined: 04/23/2014
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Mine came with a ThermoQuad already, so that should help. I seem to remember my grandfather saying he got about 10 mpg, but he never drove over 45. LOL
Resurrecting an inherited 1980 Minnie Winnie 20RG from the dead after sitting since 1998..
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Ballenxj
Formerly Southern Nevada, Idaho now
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Joined: 02/03/2003
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About Griff in Faibanks. He has mentioned to me that he is taking a small hiatus while trying to recoup his health. Meanwhile, he's catching up with things needing to be done. I'm thinking he'll be checking in from time to time.
Meanwhile, here's to Griff, who has been a wealth of information. ![[emoticon]](http://www.coastresorts.com/sharedcontent/cfb/images/cool.gif "cool")
Downsizing ">
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Griff in Fairbanks
AK
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Joined: 04/21/2005
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Ballenxj wrote:About Griff in Faibanks. He has mentioned to me that he is taking a small hiatus while trying to recoup his health. Meanwhile, he's catching up with things needing to be done. I'm thinking he'll be checking in from time to time.
Meanwhile, here's to Griff, who has been a wealth of information.
Yes, thank you. All true and I have been lurking, while doing many other things, catching up on stuff, and trying to stay ahead of the to-do tsunami.
1970 Explorer Class A on a 1969 Dodge M300 chassis with 318 cu. in. (split year)
1972 Executive Class A on a Dodge M375 chassis with 413 cu. in.
1973 Explorer Class A on a Dodge RM350 (R4) chassis with 318 engine & tranny from 1970 Explorer Class A
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StingrayL82
Nampa, Idaho
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Joined: 06/27/2017
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DRTDEVL wrote:Mine came with a ThermoQuad already, so that should help. I seem to remember my grandfather saying he got about 10 mpg, but he never drove over 45. LOL
You’re lucky. Mine had the Holley 2245. I was lucky enough to find an ‘83 B150 in the junkyard with the 4BBL intake and ThermoQuad, but it took three ThermoQuads to make the one I wanted. Mine now has the altitude compensator on it. In fact, the only thing that is from the original ‘83 is the phenolic body, the rest is from a ‘74 340 engine car.
Fred
Retired Army Guy
2005 Monaco LaPalma 37PST
Workhorse W24 chassis
8.1L Vortec
Allison 2100 MH
Onyx Color Scheme
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Griff in Fairbanks
AK
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Joined: 04/21/2005
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StingrayL82 wrote:DRTDEVL wrote:Mine came with a ThermoQuad already, so that should help. I seem to remember my grandfather saying he got about 10 mpg, but he never drove over 45. LOL
You’re lucky. Mine had the Holley 2245. I was lucky enough to find an ‘83 B150 in the junkyard with the 4BBL intake and ThermoQuad, but it took three ThermoQuads to make the one I wanted. Mine now has the altitude compensator on it. In fact, the only thing that is from the original ‘83 is the phenolic body, the rest is from a ‘74 340 engine car.
Dang it, I'm getting sucked back in ...
I'm fairly sure the 383 in my '66 Polara had a factory original 2245 on it. Never had to mess with it. Seemed to do okay.
Removed all the tread, down to the corda, on two rear tires in a matter of weeks. Contributed to my first speeding ticket, officially 73 in a 30, half a block from the stoplight. (Cop was a friend who didn't know I had a different vehicle ... had already called it in so he had to give me something ... radar was flashing a number over 90.)
If I behaved myself, holding it down to 50-60 mph, I got over 30 mpg. Of course, those where the days of better leaded gas, which probably had a lot to do with the gas mileage.
Bottom line: most carburetors on the market will do well if they're reasonably fresh and well tuned. The rest is personal preference.
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StingrayL82
Nampa, Idaho
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Griff in Fairbanks wrote:
Dang it, I'm getting sucked back in ...
?????? I knew you couldn’t stay away.
Griff in Fairbanks wrote: I'm fairly sure the 383 in my '66 Polara had a factory original 2245 on it. Never had to mess with it. Seemed to do okay.
Removed all the tread, down to the corda, on two rear tires in a matter of weeks. Contributed to my first speeding ticket, officially 73 in a 30, half a block from the stoplight. (Cop was a friend who didn't know I had a different vehicle ... had already called it in so he had to give me something ... radar was flashing a number over 90.)
If I behaved myself, holding it down to 50-60 mph, I got over 30 mpg. Of course, those where the days of better leaded gas, which probably had a lot to do with the gas mileage.
Bottom line: most carburetors on the market will do well if they're reasonably fresh and well tuned. The rest is personal preference.
I’m not knocking the Holley, it’s a great carb but I never understood why they used it on small block motorhomes. My ‘73 Fireball had no guts going up hill.
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Griff in Fairbanks
AK
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StingrayL82 wrote:I’m not knocking the Holley, it’s a great carb but I never understood why they used it on small block motorhomes. My ‘73 Fireball had no guts going up hill.
I was wondering that but didn't have enough info. I supposed they rejetted it but the size of venturis can't be changed.
It's probably good to assume what works on a big block won't work on a small block and vice versa.
All the parts have to work together ... and need to suit the application and use.
I've seen too many people make a big change in one area and wonder why their vehicle suddenly runs crappy instead of better. Likewise, I've seen guys build engines suitable for stock car races and are "less than impressive" while profiling around town.
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Griff in Fairbanks
AK
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Probably should have said big cube/small cube rather than big block/small block.
'Cause now I'm sitting here trying to remember if it was the original hemi or original big block that was 350 cu. in.
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DRTDEVL
SPAM Town, USA
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Joined: 04/23/2014
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My contractor lives in a 73 Dodge MH with a 360 and the 2245 Holley. I was wondering about that on his, too (I looked at it to see what's wrong since it quit running after the last parking, the float is stuck and flooding everything out). I would assume his has no guts uphill, whereas I can definitely hear the secondaries kick in on mine going uphill or leaving the stoplight briskly.
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Eric Hysteric
Hildesheim
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Joined: 09/19/2017
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Fbx-Ak, Holley Sniper fuel injection. How cool is that! What is your experience? Before and after, if you had a comparision between the carburetor and injection.
My edelbrock is running very smooth. At first run we had some problems with leaks after shutting off the engine. I opened the cover and saw that the float needle valves were clogged. After cleaning with brake cleaner, the engine is starting immediately now and everything is dry. No gas smell is a very new experience for me with this car :-)
I hope that this weekend i can take a testdrive.
The Edelbrock Performer is very simple carburetor, so the most vacuum lines i can deactivate.
No heated air port, no EGR, no pcv/canister port, no choke diaphragm port...
Only PCV and distributor ports (time vacuum port & manifold vacuum port). My distributor vacuum line is connected to the time vacuum port. Aha, after after reading the Edelbrock manual i bought a new fuel pump: Carter M6886 with 5.5 to 6.5 psi max. pressure. The most mechanical fuel pumps have 7.5 psi and it's too much for some Edelbrock carburetors. I put my old fuel pump to the spare parts.
Griff, the technical discussions are very interesting and that's it why i like this topic and the users here. ;-)
![[image]](https://www.thirdgen.org/forums/attachments/tech-general-engine/44932d1051772333-vacuum-line-timing-edelbrock-temp3.jpg)
'79 Dodge Sportsman 5.9 LA 360 TEC Campmate
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