- Autolite 1100, 1101 1 Barrel
- Autolite 4100 4 Barrel
- Carter Thermoquad TQ
- Carter WCFB 4 Barrel
- Carter YF, YFA 1 Barrel
- Holley 4000 Teapot
- Motorcraft 2100 2 Barrel
- Rochester 2 Jet, 2G, 2GC, 2GV
- Rochester 4 Jet, 4G, 4GC
- Rochester B, BC, BV
- Rochester Monojet 1 Barrel
- Rochester Quadrajet 4 Barrel
Do You Have the Correct Jet Size?
To determine if you need to change the jets, look at the spark plugs.
Plugs should be gray or tan color.
White indicates a lean condition. Increase the jet size by .002 and try again. Note: A vacuum leak can also cause this condition.
Black indicates a rich condition. Decrease the jet size by .002 and try again. Note: Ignition problems can also cause this condition.
Altitudes above 5,000 feet usually require lowering jet sizes by .002.