Originally Posted by stephen
today, removed valve covers, everything looks PERFECT.

new discovery, Edelbrock 1406 carburetor chock plate is jam closed. probably this is the reason for the backfiring and won't start? How do I free it?

Thanks



More likely it was caused by the backfiring. Backfiring through the carb indicates the timing is off and you are firing cylinders with the intake valve open...Don't ask me how I know...