I've been running a Holley Truck Avenger carb for a couple years now. It's worked pretty good at angles but would still stall sometimes on really steep, slow climbs. Last weekend When I went Gulches ORV park I remembered Chuck from Carolina Broncos saying he turned his idle up a little and it helped. So before we hit the trails I turned the idle screw up about half a turn and the bronco never missed a beat all day. And I had it pointing almost straight up several times. I wish I would have done it sooner.

http://www.supermotors.net/getfile/673472/fullsize/100_1722.jpg

It was steeper then it looks and I must have hit that 15 times. Never even tried to stall once.

What was your before and after idle when in gear?