While they all interact to a point, focus on these carb mods. It may take while and lots of changes to get it good:
* Jet for MPH.
* Accellerator pump squirters for 60'.
* Accellerator pump squirters and pump cams for 330".
Plan on a roll bar & especially frame connectors if you don't have them yet. Higher stall/flash should help especially since I always felt that a Victor was a bit much for most applications. I prefer a Holley Strip Dominator. 4 hole spacer may help with tuning.