Today I drove my Hotshot for the first time since the engine was out of the car, has had work done on it (including the lower pinion gear for the cam drive) and among other things including a nice rebuilt carb I bought from Chuck K. The car starts perfectly, idles nice, sounds good except when you give it heavy gas off of idle it makes a little popping sound (not much).
When I drive it, it has a lack of power above middle RPM's and when giving it throttle under load it make a slight popping (doesn't sound like pinging). When I shut off the engine you can see my remote glass fuel filter (mounted slightly lower than the fuel pump) has gas rise and fall 3/8" in the glass filter bowl and when you look down the throat of the carb there is gas pulsing into the throat above the closed the butterfly for a 1 or 2 minutes.
It sounds like burnt intake valves.
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