Was in Seattle this weekend visiting daughter and grandkids and ran up to Monroe for the swapmeet found a 3830831 4 bbl for 50 bux so picked it up for a backup to the tripower. What does this intake use for a gasket or spacer to put an AFB on it and what adapter would I need to run a holley if I went that route?
340hp 409 intake
- Thread starter 427John
- Start date
I've used empty 30-30 brass cut to length and a little epoxy to block those holes under the carburetor.John,you can bolt any typical AFB,or Holley carb on without adapters,but I would suggest plugging those holes in the carb mounting surface.You don't need that heat there especially with an aluminum carb.Great find,by the way!
I've used empty 30-30 brass cut to length and a little epoxy to block those holes under the carburetor.
That sounds like it's worth a shot
Sorry could not let that one go 
That's a much better way to block the holes. I can't even remember how I found out that the 30-30 brass fit the holes, but they fit pretty well.
They had a channel in both the gasket and the base of the 4gc carb which had a cast iron base.
I use steel wool in the holes. I also use a 3/8" thick canvas and resin spacer to isolate the heat. Available from Jegs or Summit. I can't remember which.
Ross
Ross