Realistically, I'll be building the 4K in the 38 to handle 7,500-8000. Just to tide me over till the next engine combo :thumbsup:
Will pretty much match up with what Rob has just said (MSD ign.,Balanced, Better carb(s) or EFI, Extractors and exhaust, 606 cam and slightly lightened flywheel)
CHEERS
Ryan