318 Build Carb Tune Questions

Stock jetting on the carb is a few steps smaller. I'd back it down some.

[ame]http://www.holley.com/data/TechService/Technical/Carb%20Numerical%20Listing.pdf[/ame]

I'd start out with 60 pri, 83 sec if only a primary PV, 60-63 with PV's in both ends.

Just be careful of your total number when bumping up initial timing.