The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - after new carb, cannot get idle down without stalling

colbyclay · 12-20-2010, 10:50 AM

Hello everyone,
I am working on rebuilding a 1971 C-10 with my dad. We recently put on a new Quadrajet Carb and replaced the points, condenser, coil, and distributor. (here is a link to my post on that):
http://67-72chevytrucks.com/vboard/s....php?p=4123824

Now, the truck turns over beautifully, but we had to set the idle to around 6000rpm! We set the points with a dwell meter, but when I try to back off the idle, it stalls out. I tried adjusting the idle mixture with the screws in the front of the carb, but that didn't have any appreciable change. Any ideas on what we could do to get it down to a normal idle?

Thanks

12-20-2010, 10:50 AM	#1
colbyclay Registered User Join Date: Aug 2010 Location: San Antonio TX Posts: 15	after new carb, cannot get idle down without stalling [Solved] Hello everyone, I am working on rebuilding a 1971 C-10 with my dad. We recently put on a new Quadrajet Carb and replaced the points, condenser, coil, and distributor. (here is a link to my post on that): http://67-72chevytrucks.com/vboard/s....php?p=4123824 Now, the truck turns over beautifully, but we had to set the idle to around 6000rpm! We set the points with a dwell meter, but when I try to back off the idle, it stalls out. I tried adjusting the idle mixture with the screws in the front of the carb, but that didn't have any appreciable change. Any ideas on what we could do to get it down to a normal idle? Thanks Last edited by colbyclay; 01-04-2011 at 02:14 PM. Reason: added details, changed RPMs.