Is it alright if I run regular insteed of premium in my firebird formula?? The gas cap says premium only.

 

Try it.

My 86 TA TPI (now with a 91 engine) I run on 87 all the time, dont get any knock counts and I dont hear any detonation.

 

i run reguler all the time, no harm done

 

octane depends upon compression ratios. I have about a 9.8 comp ratio and I need to run 92 octane or i will get detonation. What year enf=gine do you have you should be ok but be ready to add octane booster if your gas cap says "premium only"

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I WOULD RATHER PUSH A CAMARO THAN DRIVE AN IMPORT

1983Z28 350w/ edelbrock performer RPM power package with 64cc aluminum heads, dynomax shorty headers, 700R-4 with shift kit, 750cfm carb, edelbrock 3" exhaust system, ASCD SS hood, 16" IROC rims.

future mods:
completely done over suspension, black paint with flames, Hurst shifter, dakota digital gauge package, procharger supercharger.