RECOMMENDATIONS BY CARB TYPE
As always it is a good idea to check your motors manual for the specific make & model specifications, this is only a general guide based on carb type
| Autolite 4100 |
4.5-5.5psi |
| Autolite 4300 |
5-6.5psi |
| Carter B&B |
3-4psi |
| Carter YF, YFA |
4-5.5psi |
| Carter YH |
3.5-4.5psi |
| Carter WCD |
4-5.5psi |
| Carter WCFB |
4-5.5psi |
| Carter WDO |
3.5-5psi |
| Holley 2280 |
5-7psi |
| Holley 4000 |
3.5-4.5psi |
| Holley 4150, 4160 |
5-7psi |
| Mercarb |
4-7psi |
| Motorcraft 2100 |
4-5.5psi |
| Motorcraft 2150 |
4-6psi |
| Rochester 2 Jet |
4-6psi |
| Rochester Quadrajet |
5.5-7psi |
RECOMMENDATIONS BY APPLICATION
| MAKE |
ENG SIZE |
YEAR |
PSI |
| All US made autos |
|
1930-1940 |
2-3.5 |
| AMC |
6 cyl |
1954-1976 |
3-5 |
| AMC |
8 cyl |
1956-1976 |
4-5 |
| GM |
All |
1940-1955 |
3-5 |
| GM |
All |
1956-1976 |
4-6 |
| Mopar |
6 cyl |
1940-1976 |
3-5 |
| Mopar |
8 cyl |
1951-1976 |
4-6 |
| Ford |
4 cyl |
1970-1979 |
3-4 |
| Ford |
6 cyl |
1941-1976 |
4-5 |
| Ford |
8 cyl |
1940-1947 |
2-3 |
| Ford |
8 cyl |
1948-1953 |
3-4 |
| Ford |
8 cyl |
1954-1976 |
4-6 |
| Kaiser-Frazer |
All |
1947-1955 |
3-4 |
| Hudson |
All 6 cyl |
1940-1956 |
3-4 |
| Hudon |
All 8 cyl |
1940-1952 |
3-4 |
| Hudson |
All V8 |
1956-1957 |
4-5 |
| Nash |
All |
1940-1957 |
3-5 |
| Packard |
All |
1940-1958 |
4-5 |
| Studebaker |
6 cyl |
1940-1948 |
3-4 |
| Studebaker |
All |
1951-1966 |
4-5 |
| Willys Jeep |
|
1940-1945 |
2-3 |
| Willys Jeep |
4 cyl |
1946-1969 |
3-4 |
| Willys Jeep |
6 cyl |
1953-1963 |
3-4 |