Hello Again,
Ok, now let's say the bottom end's built up and everything.. well, let's just say we're running stage III or IV, and i'd like to run 30 psi so I'd need race gas, would I have to siphon out all my current 93 octane before adding the race fuel, or would it just lessen the race gas' octane rating? Does anyone use race gas on the streets, or is it strictly a track thing? Sorry if these questions are dumb, but they've been on my mind the last couple days.

Gary

if you got 93 octane and add 100 octane depending of how much it will just average in between depending how much its just using math... also you can use race gas all day everyday if you can afford it best price i found for 100 octane is $4.25gal... i just filled up with some race gas today.... use unleaded unless you want your o2 sensor to get mess up...
cool
Michael 99gs- hrc stage 2