340 stroker kit??????

I have the Eagle kit,4 inch crank(builder re-balanced.),H-beams,Eddy Rpm,s P&P,.631 lift solid roller cam,M1 intake/AED 850 HO carb/1 7/8 fenderwells.This is in my 66 Dart with a 8 inch Coan 4500 stall.Right now I have 3.91,s,but will be stepping up to a 4.56 spool once the money flows again.:-DShould be in the 10,s also?:cheers: