The potential of the XT/Raptor head is amazing!!!
No Expoxy or welding...

this is a Raptor 778 cc with CUERVO RACING PORTING, 40mm intake valves and 34mm exhaust,,,,set up on a BIG custom LECTRON carb and MSD ignition

if anyone is into drag racing their bike(i doubt that many people but,) there is HUGE potential in this head
we shut the rpm down on it at 10,100.