I have a 03 cobra with a new a aluminator short block (n/a version 10:1 comp) with stock heads with super car gt cams with a tvs gen 2 gt500 t/b , id1000 injectors with bap, long tube headers and catback, ill be running around 12-13psi on pump gas. my question is that my car is in california and i could get it tuned with 91 octane by shawn at aed, but I'm stationed in florida wheres theres 93 octane , is it worth just getting it dynoed for 93 octane and the closes dyno places is about 300 miles from me or just have it dyno tuned on 91 and then ship it here to florida and run 93 octane and have that safety margin just in case i get a bad gas? i wish i could run e85 but here in panama city florida theres no e85, back home in cali i had e85 stationed in my town which sucks.