Ok sorry I haven't been here in awhile fellas but i need help again. 52 Coronet 230 Flathead Straight 6. I had the biggest backfiring issue forever went threw pretty much all the easy troubleshooting. Wound up rebuilding the distributor and the carb (single Carter)......twice to no avail. Got to the point that the timing chain was determined to be the culprit. Jacked the motor, pulled the mount, pulled the cover, pulled the chain (hella slop), replaced the gears and new chain, forgot to line up the punch marks. So, pulled it all back off and very stupidly aligned the marks on each gear independantly...... so now there outta whack....right? I dont have the shop manual either so that brings me back here. looking for that old skool gear head that has actually worked on one of these motors. If someone out there can actually help get this things back in order, I would appreciate it. Im waiting on the new gaskets anyway before I can button it up. Trying to get it road ready for Huff a rama.......Help!!!