Yea I get you but not my issue . My ideal screw is all the way out . It's still field very rough at 1000-1200 . Even with distributor all the way retarded . Yes already pulled thr distributor and too dead center and Tried move plugs over one spot to see about getting to closer . It's acting like classic vacuum leak but can't find one anywhere . The motor prior to head swap ran very low rpms , never once stalled , had way more power in pedal . The new head has 100 thousands off and should have slightly better compression and more power. But it's now a total dog and idle high . Stalls , has no power even at full throttle . I'm about to set the car on fire
