Edelbrock / RHS heads, or go BIG block and put it to bed!

When tuned in with the correct spacer under the new 750 carb and using the new set of larger intake port cylinder heads, your torque band will be higher.

I would say your starting to get close to a 4000 rpm converter with the new set up.

It's safe to say at least a 3500 stall converter.

Try a dynamic (frank lupo) 9 1/2 inch 3500 stall.

You might even want a 4000 grand converter.

What intake are you running???? You might be in the market for a new one.