Originally Posted by
big_wasa
I think the problem with the heads is due to less material around the inlet valves.
This shouldn't be a problem at 250bhp.
I would think getting the cams set up will be harder.
That due to head casting or the inlet valves being bigger, thought it wold have cracked rather than warp if it was thin.
Cams may be dificult to set up i have had a good look around and had a play about with the inlet timing and set it to what i think is going to be good for the duration and lift again time will tell.