The way I see it, there's basically two ways to approach it.
-build to the specific performance goal you have in mind. Meaning, build a powerful enough motor and equip the car with the correct support equipment to reach you goal...... Or
-build what you can afford and be happy with however fast that amount of money will get you.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads