--- In BaadAssGremlins@xxxxxxxxxxxxxxx, Plumpy72@xxxx wrote: > Eddie > > The "backfiring" may be the exhaust from on cylinder escaping through the > intake. The cause is more than likely due to a collapsed exhaust lifter. The > first Gremlin I ever owner was a 74 with the 258. I had the same problem and > thought it was a bad valve. I removed the head and brought it to a local machine > shop for a rebuild. After I put it back together and started it, the noise was > still there. A closer look revealed a collapsed lifter. Since the exhaust did > not empty as usual, it escaped through the intake valve when it opened. I went > to the parts store to buy a set of lifters. They did not have a complete set > so I purchased enough for all the exhaust. I put the engine back together, > packed the car and we left for a trip to California. I never had any more problems > with that motor. > > Good luck > > Rick > > By the way......if you decide to sell the Gremlin, will you give me a shot at > the AMX flares and front spoiler? To bad there isn't a side engine cover on the 258's it sure would make changeing lifters easier than pulling the head to get at them. "Doc"