Just thought I'd update progress. I've had a little bit of time to work on the GN... put on a fuel pressure gauge and it was low 30s, added a hotwire harness and now it's up to 38, so that's good. Haven't had a chance to wot yet, but after disconnecting the battery the chip is back to 128 @ wot (i had to take it up to 150 to stop it from detonating.) I did get up to 15psi though and no problems, where I think it would have before.
