CLASS RACER FORUM - View Single Post

NORMAN BARNARD · 10-10-2015, 11:24 AM

The 6th digit of an 8 indicates it's a non gm part. It's truly a merc. Marine carb. Installed on a 4.9 liter motor. Venturi should be large bore (1.375) and 2 idle screws under the float bowl

check the booster leg to see if it has the good booster #38864,
if it does, then it's a good start for maybe a stocker.

10-10-2015, 11:24 AM	#50
NORMAN BARNARD Member Join Date: Mar 2006 Location: EL PASO, TEXAS Posts: 156 Likes: 0 Liked 2 Times in 2 Posts	Re: Rochester 2GC info The 6th digit of an 8 indicates it's a non gm part. It's truly a merc. Marine carb. Installed on a 4.9 liter motor. Venturi should be large bore (1.375) and 2 idle screws under the float bowl check the booster leg to see if it has the good booster #38864, if it does, then it's a good start for maybe a stocker.