Should I launch at stall speed or continue to do what ive been doing with street tires and flash the converter off idle?

Everyone says that for the best ET's with a stock converter you want to shock it off idle...

I get my best ETs stalling the converter but I get my best RTs launching from idle.

Pick your poison. :)

Leaving off the foot brake, I should be able to stall around 1800rpm with the stock converter and 4.30's?

You'll likely want to experiment. I know guys that swear at 1000 rpms, I seem to do better at 2000 rpms, other times at 1500 rpms. I would say with a stock converter, 1000 to 1500 in your case. Consistency is the key. But again, practice to find what works best and be aware it takes a LOT to get used to cutting good lights when stalling the converter vs. leaving off idle (at least for me it does). You also likely will find you need to stage shallower than normal to get your RTs where you want.

You'll likely want to experiment. I know guys that swear at 1000 rpms, I seem to do better at 2000 rpms, other times at 1500 rpms. I would say with a stock converter, 1000 to 1500 in your case. Consistency is the key. But again, practice to find what works best and be aware it takes a LOT to get used to cutting good lights when stalling the converter vs. leaving off idle (at least for me it does). You also likely will find you need to stage shallower than normal to get your RTs where you want.

I'm not too worried about being consistant tomorrow, just want to break into the 13's and see what the car is capable of with the new mods...