hello, my 75 610 goon all of a sudden lost a lot of power and sorta sound a little like its missing today, and i'm looking for some advice on what the issue could be or my next plan of action to solve this.
A little background on what is currently wrong with the engine, it's been backfiring out the exhaust a little on idle, and and a lot on deceleration. And more recently it is smoking out the exhaust and smells and looks like it could be burning oil. I advanced the timing a day or two ago to try to see if i could get the car to stop back firing, it ran fine but still backfired. And on my way home from school today i parked it and when i started it back up it started running like crap.
All the cylinders are firing. I've cleaned my cap and dizzy, checked leads, played around with the timing, played with the carbs fuel mixture and even checked for vacuum leaks.
I don't know what the heck could be wrong with it, my best guess is it needs some sort of valve adjustment which i don't even know how to do.
Thanks Dastun people smarter than me!