I recently had a topic backfire and missing and received a lot help. that part has been basically fixed. I now can't my dwell higher than 20 degrees. I have pulled the distributor stetting the points a .025, had someone run the starter and moved the point adjusting screw without getting the dwell above 20 degrees. the points and distributor are new, the distributor has about .002 run out when checked with a dial indicator. The truck runs fine up to about 45 mph but is not quire right. I am using the truck but would like help solving the problem. Thanks Larry