1964 Ford 100 knocking?
while i have my 1964 Ford 100 at an idle it is fine. there is a bit of a knocking though it sounds like it is coming from the carbarator. when i idle it up i get a repeated knocking sound coming like its from the carbarator. when it is at a high idle you can really hear it. could be something down in the air intake?
i have changed the sparq plugs. and checked the carbarator at it was clean, yet i have gotten flames out of it more than once.
any help thanks.