Offenhauser s Super Sonic intake manifolds are a refinement of their popular Port-O-Sonic intakes. They re designed specifically to take maximum advantage of the Holley 4500 on the track or strip. The big plenum and hefty runners work well together. However, the real gains come from four paravanes located at the bottom of the plenum, which direct the fuel/air charge for even distribution with minimum turbulence. The result is a power band that stretches from 3,400 rpm to 8,800 rpm.
This intake is garage sale priced because it is new old stock.
NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS