OK. Thanks for the input. You guys know more than I do which is why I'm on here asking questions and discussing issues.

I'm using a 1966 tri power which takes three 500cfm carbs. I know a single four barrel is way more efficient, easier to deal with and it's also more common than a Camaro. I just want something a little more impressive under the hood.

Lets just consider I'm going to run a single 500cfm 2bbl. I can set the linkage up so the outside carbs open at 75% throttle or, in other words -hardly ever -just for show.

8.25 to 1 would be a little low but a lot easier to deal with than too high considering a big heavy truck and pump gas.

This foolish exersise is just an attempt to keep this GMC all GMC, which means keep the motor ALL factory Pontiac parts and get more cubic inches.

The proof will be in the pudding.


1947 M15 Studebaker 454 4x4
1949 Chevy COE
In the Stovebolt Gallery
More pix of the COE
1950 Harley FL
1958 GMC LCF 455 3x2bbl
1961 Chevy C60 Tilt Cab 327
1966 Chevy C60 Tilt Cab 496
1961 Chevy K10 sb 292
1974 Harley FXE
1979 Chevy K10 sb
2007 Harley Streetglide


I'm not that good but I'm slow