1/4" Phenolic Insulator kit 1957-58 Tri-power Engine Performance This is the choke bracket

This is the choke bracket

50 or the wing nuts and air cleaner studs set of three $12

Kit has the three large air cleaner bases

Bases are fitted with new shafts

1/4" Phenolic Insulator kit 1957-58 Tri-power Engine Performance This is the choke bracketThis kit also fits the popular 348s, and Olds J 2 as well as the Early Pontiac's. If your tripower has three small Rochester carbs, this fits. Kit includes three precision cut insulators, set of 12 studs and new, plated nuts. Studs are made for this application not a generic piece. Studs have the correct 5 16 18 threads into intake and 5 16 24 up on top. Kit includes 6 gaskets, which you will need. Solves issues with fuel boiling in the bowls,