[Sparky400ex]

I have a 2000 400ex, I bought it with a high comp piston, stage 2 hot cams, aftermarket header, dg exhaust and a couple other things, I have been thinking about running race fuel to try to get little better pover maybe a little cooler running but mainly to be honest the smell lol. My question is would it be ok to run race fuel with this setup and if I do a 440 big bore will it still be ok to run?

 

[Sparky400ex]

I'm thinking about trying either a mix or straight, I know it's a high comp piston but not sure the ratio. Mainly want it to run a little cooler

 

[Sparky400ex]

It's not getting to hot right now I just herd that race fuel might make it run a little cooler which is always nice, I know cfm I got there air box/battery box and plan to get the oil tank