So any advice would be appreciated, I have a 77 f100 with the I6 and i am having troubles keeping it running. Where my carb meets the spacer gas keeps leaking from that gasket, so I replaced the gasket and now I think the carb mating surface must be warped or something, could I get some advice on what I can do to diagnose this without buying a new carb. I also did take it apart and cleaned it and it didn’t help. Thanks, brad

 

Put the base of the carb on something you know is flat, straight, and level. See if there is any wobble or space in any if the corners. The spacer itself could also be deformed.

 

They make extra thick gaskets for that reason. Try those and a new carb base plate, if that doesn't fix it, somethings warped and needs machining.