I've polished my intake /exuast ports on my 91 250 to a mirror finish,
+ port matching.I need to replace my my piston & i'm considering boring the cyl. one size larger w/ a wiesco piston.
my question(s) are has anyone tried this polish/ over bore combo & what kind of power gains. also will i need a ritcher jet?
+ port matching.I need to replace my my piston & i'm considering boring the cyl. one size larger w/ a wiesco piston.
my question(s) are has anyone tried this polish/ over bore combo & what kind of power gains. also will i need a ritcher jet?
