When I first bought my 52 AD with a 58 235 it seamed a little noisy. I adjusted the valves with feeler gauges to the proper settings. The truck started running warmer than usual and someone on here siad the valves were probably too tight. I readjusted the vlaves and loosend them up a bit, still within spec. Well I was taking the truck in to have the tranny converted to an 700R4 and while I was driving along the truck started backfiring slightly but I kept going wanting to make it to the shop. It got worse and worse. The guy at the shop says it is my carb but the shop foreman just called and he said he thinks its internal. I thought it was points but why did this start after I adjusted the valves? I asked the foreman to take the valve cover of and look to see if I left a retaining nut loose and a rocker came loose. I am at a loss right now. Any suggestions?

The carb did look wet when we got to the shop.

52 Chevy 3100 5 Window, LS Swap, 4spd Auto, Vintage Air AC / Heat, CPP Power Front Disc Brake Conversion with bearing upgrade, Power Steering Conversion, LED Tail Lights