Hey Tim, I know this is an old thread but can you post another vid of your dyno pulls. The old link to Youtube doesn't seem to work. I love that thing because it's a testament to what the L motor is capable of. I've searched quite a bit on most of your threads but didn't see if you stated who did your head work and the extent of it? Would you be willing to share that kind of info with a fellow enthusiast? I want to get mine done but cant make up my mind if I want to use Rebello, Braap, or, 1 fast z, or Sunbelt.
My thinking is, a little advice from someone with 600+ WHP can't hurt. I too have an N42 head and a F54 block but I plan on running the stock crank. My main concern is with the head, starting with a competent machine shop and/or porter. Thanks!