Just picked up my \"new to me\" M1008, surge question I'm very happy with my purchase, rust free Georgia truck w/ 52,000 miles. I have one question, I searched for surging problems and found most happen at idle, and often coincide with hard starting, so I'm not sure if this is my problem or not. At a constant easy acceleration the truck will take off at 45mph without an apparent reason until 55-60. Its a little boost that seems to come out of nowhere. The truck starts fine, idles fine,runs strong. I'll start looking for possible air leaks, but if someone has another idea please let me know. One more thing it does not have the stock rectangular fuel filter, It has a aftermarket spin-on napa filter instead.