Speed costs money, how fast can you afford?
My last S&G event with NOs was a dust pan full of parts when we went to a 150 shot on a tired engine.
Turbo or supercharger would add a fair amount, however like 4onthefloor stated, I would add EFI and a rev limiter to keep the pistons in their assigned bores. Nothing ruins a day faster than a parts-scattering event.
