Ok. I've got a Ford 302 with a edelbrock performer intake and a 1406 on top of that. Problem I was having was the truck would not cruise right. Missed and stumbled at 1500-1800 rpm. So, I checked the rods and jets. PO had the truck 3 stages lean from stock. So, I changed out the jets and brought it back to stock. I took a drive (15 miles) and the truck road great. No cruise miss. But, now I got a miss at idle. It even misses so bad the truck will die. Any help would be greatly appreciated