Slant 6 Turbo 68Dart Project

So.should I just go 650 mighty demon since it's already setup for blow thru there about half the price of an fast efi system

That would be MY choice, but you have to factor in the personal preferences I have that come from the facts that I am O-L-D (77) and am pathetically-intimidated with anything that says "EFI" on it (steep learning curve for me,) and the fact that I have experience with tuning carbs, and it seems simple, to me.

Overall, I think EFI might be easier, but not for me...

Good luck! :D