I'd set the initial at least at 15 & maybe 20 then shorten the slots with the $25 FBO plate (to 35 total, initial+slots). what springs are in there? I'm assuming you are on ported/vac adv operational. & we gotta solve the poor idle, I'd start with a basic compression test/idle vacuum. EDIT I saw your 2nd post, bump up the timing/lower the idle speed.

Last edited by RapidRobert; 06/05/18 10:57 PM.
live every 24 hour block of time like it's your last day on earth