[nicks diner]

Originally Posted by 68post

with the proper piston to deck height you'll have closer to 11.7 - 1 compression , a 76cc chamber would be perfect with flattops.
The 850 holley isn't a good street carb for anything smaller than a 454 , and not great then either .
A holley 780/750 vacuum carb or a 750 or 800 tuned-up qjet (first choice), even an 800dp or an 830dp holley carbs will be more responsive. Better yet the demon high-end carbs are better than all but the very newest and best holleys.

What is the cam's .050 duration ?

243 257