1/4" Phenolic Insulator kit 1957-58 Tri-power Engine Performance 50 or the wing nuts

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

Picture is of linkage for GTO

inquire if needed

J shaped bracket to attach to center carb

This is the correct Nylon F-fitting with the OEM markings and part number

1/4" Phenolic Insulator kit 1957-58 Tri-power Engine Performance 50 or the wing nutsThis 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,