What to do next 83 Capri still back fires

[sawdust]

I have posted a few times on here about the problem I'm having. When I first start it up on high idle it seems ok but once it warms up it back fire threw the carb and kills. Last time thought maybe stuck valve so I swap out the 83 heads for some E7's still have the problem. I'v been thinking cam all a long but most people did think that was the problem. I don't know what else it can be. I have a brand new holley and a complete tune up done. Timing and firing order are all set. I've had the problem from day one of buying it.

[2 beer]

check your cam timing. Your timing chain may have slack. Other then that it looks like you have all your bases covered.

[NAZISALEEN]

Just put a 200 shot on it and call it good. It will fix itself


Sorry. What voltage is the alternator putting out?? New coil?? It sounds like something could be heating up in your primary ignition. (if that is the right term) maybe the control module, coil, dist.

[sawdust]

Installed a new distributor and new accel super coil. When putting on the E7's heads we found one push rod shorter then all the others. So thought that was my problem but no.

[Steve]

maybe the other 15 were too long........

[2 beer]

wrong length pushrods is worth looking into

[sawdust]

There all the same length now

[2 beer]

but are they the right length?