Quote Originally Posted by jchrisd
Why 64? I am not sure what it came with stock, guess I will have to pull it apart. How did you come to this conclusion?? Just trying to learn.

3310 750cfm should have come with 72's up front and a 6.5 PV.

I run a holley 750 DP on my mild 350 and have no hesitation. Its all in the tunning. MY bud runs a proform body and front metering block reworked body to ~850cfm on his ford NA 302, radical cam and head setup and runs mid 11's all day long and as crisp as you can get. If you have some one local who can tune it for you Id stick with it. Bud thats just me.