The one in my 216 is a "51" but the carb that I put on originally had a "58" in it. With the larger jet I had lots of extra power but it carboned up the plugs. I am thinking the "58" was for a 235.


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!