Posted by Scott on January 23, 1999 at 01:34:49:
In Reply to: Vortec Intake Manifolds posted by Bill on January 22, 1999 at 12:49:34:
: I know Edelbrock makes 2 squarebore manifolds for the Vortec heads...a Performer & a Performer RPM. Does GM or any other company offer a spreadbore intake manifold for Vorec heads...I know I can drill the heads to accept another style of intake, but I'd rather buy a correct one instead.
The standard Performer manifold accepts square bore carbs, and the spread bores, such as the Q-jet. The RPM only accepts the square bore carbs.