Part of the reason for the holes is because of how Carter did the holes for the idle mixture and transition, I had a 318 idleing at 550 rpms with this exact same carb. Plan on a rebuild every year, they don't like any junk to build up in them. I still have 1 similar on the shelf if I ever need it for a jeep project. Tim


1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!