Here is my problem I have an 86 Bronco that when I punch the accelerator it bucks. I have changed the EGR valve and sensor, and the map sensor and still the problem is there if you have any help that you can give me please email me at dlorenza@...

Change the Fuel Filter and run premium gas in it.

Not only could it be the parts youve changed but also think about the throttle position sensor..

you could also bee getting a egr code becuse it is a backpressure egr if you cat is cloggeed it will trip this code, any exhaust shop will check this for free, also a cleland block was only came with older carbarated eninge's if you feel that you injecotrs are firing wrong hypertech will custom burn a chip t fix this, also i saw a post a while back about 35's i have a 88' w'4inch pro comp, ran 33 bfgs mudd for many years now i am running 35 super swampers SSR 35x12.5x15 on 10 rims rub on inner fender under full turn full compresion, so it aint bad, i wheel the thing prety hard and love the 35<br><br>Mark