If you have the wrong main jet in the Rochester, it will do that. I had a Rochester for my 216 and it had a main jet stamped 58. That caused it to run rich. The one I have in there now says 51 on it.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!