VERY Limited Quantities Available. This hard to find choke has been out of production for several years.
Replaces GM OEM choke # 486250, 487312, 488073.
1971-72 Pontiac Firebird 400-455
1971-72 Pontiac LeMans 400-455
1971-72 Pontiac 400-455
Fits: Rochester Twojet / 2G 2bbl carburetors
Stock replacement choke thermostat assembly.
Divorced choke mounts directly to intake manifold surface.
Also know as a Crossover Choke.
When heated, the "loop" at the end of the bi-metal spring moves DOWN towards the intake manifold.