Hi all! Finally really got to run my 440 Duster project around and while I was really excited to have it out on the road, I was running into some issues at 3/4 to Wide Open throttle. This is my first time tuning a BB Mopar or seriously getting into any engine. 1970 440HP Edelbrock Performer RPM with 750 carb. 906 heads with Crane adjustable rockers. Schumacher Headers Older Mopar 296 purple shaft. 440Source ready to run Dizzy. Initial timing is at 18 BTDC and 34 Total. I capped off the Vaccum advance for now until I figure out what I’m doing. Idle in park is around 950 and gear is 700. It really doesn’t want to idle lower than that. Any thoughts on why I would be pinging at wide open throttle? To lean? To much advance? I’m at very new to this so it might be something really obvious I’m missing.