| YEAR MAKE & MODEL | FLOAT LEVEL | PUMP ADJ TYPE | PUMP ADJ SETTING | METERING ROD TYPE | METERING ROD SETTING | FAST IDLE ADJ SIDE A | FAST IDLE ADJ SIDE B | UNLOADER | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1946-47 Buick M4D-5D | 3/16 | A | 21/64 | A | 2.44 | .020 | .012 | 3/16 | | 1946-47 Buick M-70 | 3/16 | A | 21/64 | A | 2.94 | .020 | .018 | 3/16 | | 1948-49 Buick M40-50-70 | 5/32 | A | 21/64 | B | Bottom | .020 | .018 | 3/16 | | 1950-53 Buick M40 | 5/32 | A | 20/64 | B | Bottom | .020 | .015 | 3/16 | | 1950-52 Buick M50 | 5/32 | A | 20/64 | B | Bottom | .020 | .015 | 3/16 | | 1950-51 Buick M70 | 5/32 | A | 20/64 | B | Bottom | .020 | .015 | 3/16 | | 1953 Buick M50 | 7/32 | A | 17/64 | B | Bottom | .020 | 015 | 3/16 | | 1954 Buick M40-50 | 7/32 | A | 17/64 | B | Bottom | .020 | .028 | 3/16 | | 1955 Buick M40 Early & Canada | 3/16 | A | 17/64 | B | Bottom | .020 | .025 | 1/4 | | 1950-51 Cadillac | 5/32 | A | 19/64 | B | Bottom | .020 | .020 | 7/32 | | 1953-54 Pontiac 6 | 5/32 | B | Parallel | B | Bottom | .040 | .026 | 9/64 | | 1947-48 Pontiac B | 3/16 | A | 18/64 | A | 2.94 | .040 | .026 | 1/8 | | 1949-54 Pontiac 8 | 3/16 | A | 20/64 | A | 2.94 | .040 | .026 | 1/8 | | 1956-63 Rambler | 5/32 | B | Parallel | B | Bottom | .010 | .020 | 3/16 | | 1964 Rambler 6 | 1/8 | B | Parallel | B | Bottom | .010 | .020 | 3/16 |