Isky Cams Oval Track Solid Flat Tappet Camshaft - SB Chevy - 535/246 Grind - 2400-6600 RPM Range - Advertised Duration 274, 274 - Duration @ .050" 246, 246 - Lift .535", .535" - 108 Lobe Center Helmet Air System This manifold produced 20 more

This manifold produced 20 more horsepower over our number 35210 manifold at 5500 rpm

while still absorbed road noise and engine vibrations

Bert Drive Flange

SPECS: Application: 0-80670 Brand: Holley

1975-1984 Chevrolet C20

Isky Cams Oval Track Solid Flat Tappet Camshaft - SB Chevy - 535/246 Grind - 2400-6600 RPM Range - Advertised Duration 274, 274 - Duration @ .050" 246, 246 - Lift .535", .535" - 108 Lobe Center Helmet Air System This manifold produced 20 moreSingle pattern overlap reduced for restricted intake classes (Late model stock) 1 4 mile track long rod applications. As the world's largest racing, performance, and economy cam manufacturer, Isky maintains a dynamometer testing program for constant improvement of camshaft and valve train design. These tests are conducted daily in Isky's new enlarged dyno facility. To properly evaluate and prove the efficiency of Isky racing cams and valve train