roneski

That's about right on pump gas.

SinCity350Z

^^What they said. But I wouldn't say 91 was safe on the track at that level. Nothing more than 350whp if you are tracking on 91, 400whp if you are on 100 or above.

i8acobra

If you're looking to stay cheap, go with the Stillen blower setup. I'd say stick with Stage 3 in Vegas with our 100+ degree summers and 91 octane gas. If you don't mind running 100 octane in the summer, you can try the Stage 4. No matter which you do, I'd run a progressive methanol injection setup. Cheap insurance.