Originally Posted by rebel
... the edge of ghe fave face only misses the valve pocket side wall by 0.045. Would you consider that too close? Maybe I should advance the cam half a degree? Whats your call?

I would just chamfer (bevel) the top edge of the valve relief to give insurance against piston rocking.


1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1