those old straight 6's were pretty much bullet proof. I had a 67 Dodge dart with a 225 slant 6. Couldn't kill it. rest of the car was crap but that engine wouldn't quit. had a f150 with the 300 in it. same thing.. tranny was crap in that one. C4 tranny was a shit box.
Sonny, sounds like that carb needs to be re-jetted. Carter?????

I know a lot about a lot of things BUT I still have a lot to learn.
Life is what you make of it. So, why not make a working machine to make it easier.