I probably wouldn't have started this thread except, I have owned two Pontiacs.
1. 1964 GTO 389 bored ,060 tri power other than the bore everything else was stock. 4 speed and 3:23 rear end. At 65 mph it got 18-19 mpg.SOLD
2. Currently 1965 tempest conv. 400 bored .040 crower 60240 cam #15 heads(small valve)
performer intake 735 cfm Quick fuel. Overdrive with 3:73 gears final 4th gear
2.55. at 65 mph 12 mpg.
Thursday I am taking it a shop and they are going to run it on there dyno and check AFR all the way through the gears.
I'm thinking put a tri power on it maybe lightning will strike twice. lol
Thanks
Last edited by footjoy; 10-14-2019 at 09:18 AM.
|