hi-comp piston

[biscuit_450r]

Will a high comp piston like 13:1 make my 450 hard to start?

[ALLUWANT]

I WOULDNT THINK SO. I KNOW FOR A FACT THAT U WILL HAVE TO RUN RACE FUEL THOUGH. IM GOIN WITH 11.5 TO 1 IN MINE AND THATS BOUT AS SAFE OF PUMP GAS AS I WANT TO GO

[speedfreaksguy]

I have the Wiseco 13.5 and it starts as easy as the day I bought it.

[Colby@C&DRacing]

we have a 13:1 in ours and starts like it did stock.