best with upgraded exhaust and 2000+ stall. Choppy idle. 1994 pontiac firebird Vorshlag upper spring perches are

Vorshlag upper spring perches are included and built to fit the strut style you select (see "Spring Perch" drop down option menu

this flat two-piece adjustable guide plate set is designed for Chevrolet 265-400 Small Block and Ford 289-351W engines with 7/16" studs and 3/8" pushrods

without a significant increase in NVH

100" thick aluminum and has a billet aluminum neck with a barbed overflow fitting and accepts standard radiator caps

CNC machined from 1/8” thick aluminum this panel is light weight

best with upgraded exhaust and 2000+ stall. Choppy idle. 1994 pontiac firebird Vorshlag upper spring perches arebest with upgraded exhaust and 2000+ stall. Choppy idle.