Chip, thanks for that info, I'm a bit wet behind the ears with it all so need as much info as possible!
My engine has a good spec, new non Turkish block, cosworth pistons, low comp, nick waples head, all machine work by scs, one of marks tubular twin scroll manifolds and Borg Warner sx200. I'm hoping it can take a shot gas, hopefully 500+hp off gas and closer to 600 with gas just for 1/4 mile and possibly a top speed run.