 Backfire!!!! Alot!!!!!
Hello shanes0406,
I was gonna start this and say your motor is junk but that would be rude of me.
I think what I am trying to say is don't consider the worse at least not without checking some things.
There are many things that could cause backfires,
1. - Timing
1. - Lean fuel mixture
3. - Crossed wires
4. - Check for a loose or cracked vac line
When I have a problem like this I try to do the following:
1. - Ask yourself when did this start? Had I done anything recently prior to the problem.
2. - Next i would start simple: - Check fire order, and double check that all plug wires are correct. Try not to have them cross each other when possible
3. - Check the height of the fuel in the fuel bowls. (This will tell you if you have fuel to the carb also)
4. - As suggested, bring #1 up to TDC on compression stroke and see where the rotor is pointing.
I remember when I was a kid, I'd get frustrated and overlook the little things.
So many times that's all it is. Generally bad things like broken cam lobes or valves don't just happen. It is far more likely to be something little.
of course if you check and re-check all the little things a compression test would answer a lot of questions. Sure things break but you usually know it when it does.
I am sorry if this seems like a sermon but I hope others will see it and try to remember start small.......Print Dad | 
Backfire!!!! Alot!!!!! 
