Help "tune" my supercharged 360 1972 Dart, please!!

Hey, I just checked on this.....

A blower engine on the street should be running a manifold referenced PV style carb. Reason being is that the PV is referencing the vacuum between the carb and blower which is always high and the PV won't open as it should. They detail the mod to do this by yourself too.

Here's an excellent Q&A on Holley's website:
http://www.holley.com/TechService/FAQ.asp?category=Blower

They also say that initial timing should be around 12-20 BTDC inital, but no more than 32 total and all in by 2800 rpm.