Does he have to run race gas???

[416HiRoller]

My friend is thinking of getting a 440 kit for his z and it is a 12.5:1 compression piston so what he was wondering is if he needs to run race gas. I told him he should run 110 93 mixed but he wasn't sure. Does any one know??

Need to know as soon as possible!!!

Thanks

[BlueZ440]

Yes..I run straight 110 with my kit..Sometimes when I feel Rich, I run VP ultimate 4(98 oct oxygenated) or mix 110 with premium(50/50)

[ramp rida 55]

you could run 93 but it might ping a little but it would run alot better if you run 50/50 mix of VP C12 and 93 pump

[416HiRoller]

Alright guys thanks. I told him in the first place but I ride a 416ex so I guess he wanted to know from some other z riders. I tell him.

Thanks