Quote:

Yes, all things being equal, would it be better running a flatop verses the piston pictured above??

~thanks



That all depends on what compression ratio you need to be able to run the octane fuel you want.

If you choose a flat top and end up with 12.5 compression but want to run 89 octane fuel then yes you would need a piston that looks like the one above to get an octane friendly compression ratio and still have quench.