Holley Sniper EFI
Yeah, i can't help with a vacuum leak via the keyboard. I'd try to bump timing up to 20 initial and see if it likes it. and leave the idle control out of it as you have. Again i think you're just throwing ideas at the wall with the manifold swap, but if you have a vac leak, you may correct it in the process. Try to email woody again, and if you want my input, its extremely important for you to CC me, even if he doesn't. Keep in mind if i can't see what you guys tried or talked about, I'm jumping into the middle of it completely unknowing every time. i want to get it going for you, just tough to do w/o all the info.