So I have a 79 Pontiac firebird with a 301 and I just went through about two weeks of it not running. So I found the issue was my pickup coil which a bought a new one and installed it. I also installed a new ignition module and coil because I thought they were the problems however they weren’t. So everything is running smooth and I have it timed at 12 degrees BTDC but I noticed when the car gets up to temp I now have a very slight misfire. I tried changing the timing but it’s still there. Currently the car is at 15 degrees BTDC. Any suggestions on why I have a misfire and what the cause may be?