My chevy motor is having issues. I recently had a short replaced a coil wow 100 bucks. Chevy 350 510 cam, flat top pistons, noisey gears drive <(that has to go). Long story short everything is high perf edelborck. well anyways I took all my plug wires off when I put em back on the recommended firing order don't work. Course I have no clue what it was before. Forgive my ignorance for not writing it down. 18436572 just doesn't do it. HEI distrubuter. I got my timing precise thats simple. Firing order I have is clockewise. Wondering if maybe noisey gear junk went bad. That I shall check next. Anyone know any other order that may work. I sure don't, only diff I see is in buick motor older ones. 7 and 4 switch spots. and yes I got the number one piston up at compresion for number 1. Thanks for any input it is appreciated.