[asm43]

what is .80 over in the bore lol how many cc i know nothing about boring

 

[blasterman88]

that would be a 68mm bore, its 2mm over....for every .039 is 1mm

 

[asm43]

thanks

 

[86 Quad R]

that'll put you at around 261.48 CC's

 

[SHOWNGO250R]

Roughly...