I have an N42 head/N42 bottom end engine that I added triple Webers to this last year.  I am enjoying them immensely.  I wanted to port match and unshroud the valves to get best air flow and enhance performance.  I believe the N42 head is a good option for headwork, but am wondering if the FI notches on the intake ports will cause any issues on port matching?  I wanted input from those of you that know about this much more than I!

I appreciate your thoughts.

Stephen

Oh, I had flat top pistons installed when engine rebuilt 10 years ago, so getting about 10 to 1 compression, if that makes any difference.

Edited August 7, 20177 yr by duffman