I think it's the carb, Too mush fuel Options

[RogerYellow914]

The car was running fine. Then last week, it started to pop and backfire on the freeway at 70 in 5th. It did fine in 4th at 70. Later in the day going up a grade at 70, it started to backfire real bad and lost power. I pulled over and it wouldn't idle. It was hard to start and then died. Investigation found fuel on the air cleaner cover on the passenger side carb.



Is this an indication that this float is bad? Is there a way to test the float vs. the valve?



Does this look like too much fuel in the bowl?

Thanks,

Roger

[Superhawk996]

Not really repairable.

Well . . . everything is repairable given lots of time and money.

Since heads are still readily available, you'll want to simply replace. There is no point in trying to repair these. These are very far gone and aren't worth repairing. HAM has new heads available.

As to cause. . . In my opinion it looks like damage from running lean and overheating and has eroded the head around the valve seat. Potentially had some detonation going on too to have caused that kind of massive errosion of the aluminum between the valves.

At this point, you need to take a very close look at your pistons and rings too. I'd be surprised if they were not in bad shape too given how bad these heads look. If there was detonation going on, it will have taken a toll on pistons, rings, and wrist pins. All of those can be inspected without splitting the case.