can u run a 12:1 comp on pump gas or would i have to use race fuel?...(ls vtec setup)

 

who built/ tuned your motor? you should be asking who ever did that.

you can try your highest octane and if it starts bogging and what not then you know forsure lol

and some places have race gas or higher then normal octane so you should check out your local area if you have any stations

i think itr is at 11 but they can run 91 fine

 

i ran 12.5:1 on premium for a long time..no problems

 

im running 94 pump gas at 12.5 comp ratio and its absolutely fine.

 

tuned?

 

anything thats 12.5:1 you can run on 91 or higher octane with no problems