Tuning the Monster!

[MDM]

I am not sure I completely understand your post. As I read it, you found your ign adv to be 20 deg and you backed it down to 10. If you are running super, you might be able to get away with a few more degrees adv. Try a degree or two at a time but listen carefully for detonation while you test drive it is that setting. YOu can probably get around 14 deg in a NA motor with SPOUT connector disconnected. The F cam will cost you some vacuum at idle in comparison to the stock or less aggressive cam, like the E. Start simple: I would check for vacuum leaks in all your soft lines and around all mating surfaces, the latter of which it sounds like you already did. As for the fuel, it sounds like your feul press was @ 30 and you changed it to 23. At idle, with the vacuum advance line removed and the port plugged on the resulator, you should be in the neighborhood of 38 psi. Let us know how it works out.