Its new E-Tec heads retain the best features of the ... and intake gasket PN 1255, which has a Vortec intake manifold mounting-bolt pattern and matches the taller Vortec intake ports.

And as goes the carburetor so goes the intake manifold. In our small corner of ... and-later Vortec iron heads as well as Edelbrock E-Tec aluminum heads. The RPM Air-Gap Dual Quad kit is designed ...