Originally Posted by
tabetha
Just change the inlet to a BD14 or 15, there's no magic cam, at the end of the day lift and duration control what goes in, I use reground cams, where there is enough base circle, my BD8 is going to be ground to BD15 next year.
Greys will certainly do 450 without a problem.
tabetha
Without a problem ?
They're on the limit at 450
To the op, I would invest money in head porting and a inlet cam it makes it a far better engine allowing it to breath more up the rev range