I have annoyed the car gods. Sigh!

Got my timing problem fixed, finally. So when checking the timing and final setting I had my brother rev the car in park to 5000 rpm and everything looked great. Timing mark solid as a rock engine sounded good. So I told him to let off the gas.

As soon as he did the engine backfired and died!!! Now I can't get it to start again and it seems to be back firing randomly. Sometimes out the exhaust sometime out the carb.

When I line up tdc everything looks to be right on timing marks. Pulled the rockers of and the valves all look normal and when I turn it over the rockers all seem to moved right.

Any ideas?

360
lunati 402 cam
KB 187 pistion .30 over
Stock heads.
Comp cam 942 valve springs.

Thanks,
Dan...