Edelbrock Performer 5.0 351W Intake Manifold Phenolic Spacer Kit-1520 locks-and-hardware 9L V8 1977 Pontiac Firebird

9L V8 1977 Pontiac Firebird Base 403/6

4 V8 1968 Chevrolet Impala 307/5 V8 1961 - 1967 Chevrolet K10 Pickup 283/4

1963 Chevrolet Bel Air 7

We also addressed the weak factory detent pressure and have significantly increased the detent pressure creating a noticeably stiffer shift feel and preventing the transmission from popping out of gear

Nissan Pathfinder Armada (2004)

Edelbrock Performer 5.0 351W Intake Manifold Phenolic Spacer Kit-1520 locks-and-hardware 9L V8 1977 Pontiac FirebirdBBK Performance phenolic intake manifold spacer kits have proven to be a great way to increase performance for late model Ford EFI owners. Each Phenolic spacer is CNC Machined from 3 8 inch phenolic material, these manifold spacer kits increase power by reducing the transfer of heat from the lower manifold to upper air intake manifold. This produces lower air intake temperatures which results in added horsepower and the ability to add more timing