From a recent thread:
The car picked up 5 tenths and 11 mph from the converter swap.
At the performance level of the car in that post, that 11mph represents about 150hp on the Moroso Chart.
I wonder how much extra hp the motor made with the new converter.
You think it seems reasonable that a 416 with TF heads, roller cam, nice headers, good intake, nice carb would make the same power(550-ish)as a 412” Pontiac with stock heads, intake, carb, and a .420” cam?
Interestingly....... you don’t seem to have any problem with the vailidity of these dyno numbers....... yet I don’t think that motor has been on the track yet:
You should read about the motor my engine builder won a competition with. Stock stroke, 11.66 compression 360. Made 773. Then 737 with mufflers on a 90 degree day at the competition to win it.
Yep, heads matter.
