Hey, I have an '85 bronco II, Has a new 2.8L, with about 20,000 miles on it and an A4LD autotrans. The trans has about 15,000 on it. drivetrain is all stock except for a 4" rough country lift and 31" Cooper sst tires. Motor has headers and a 2 1/2 inch exhaust, no cat. Having problems with...