My 1972 F100 needed a new carburetor, so I had to choose between a rebuilt stock one and a new aftermarket Holley.

I spent last weekend under the hood of my old Ford pickup debating between a $150 rebuild of the original Autolite 2100 and a $350 Holley 600 cfm. I went with the Holley because I wanted a little more power for highway merging, but now I'm fighting a vacuum leak at the base. Has anyone else made a similar swap and had to mess with the adapter plate to get it to seal right?

2 comments

2 Comments

lunaw727d ago

Nah, you gotta run a gasket with that adapter, solved mine right away.

taylorm897d agoMost Upvoted

Ran a 3/8 gasket on mine after fighting with it for a week. Had to trim the edge a little to fit the groove right but once it seated that leak was gone. Tried the paper gaskets first, they just keep blowing out under pressure. Rubber ones hold up way better. Make sure you torque it down in stages too, not just crank it all at once or you'll warp the flange.