My Pro Systems 950 was dead nuts on going down the track but pig rich at idle, adjusting the idle screws didn't do anything, I sent it Thumpercarb, he only worked on the idle circuit...It's perfect now. 1/8 turn on the idle screws makes a diff now where before NOTHING did.

2001 Dodge Dakota
408 All Motor
11.27 @ 117.83 mph
2017 NM Mopar Challenge Series Champion.