The wish of TPI owners is that they could pop on a set of inexpensive Vortec heads for a power boost. But alas, Vortec heads will not simply bolt onto the TPI...until now. Nicky Fowler and his ...

The SuperRam runners are shorter than the TPI runners to increase top-end horsepower ... dollar-per-horsepower advantages of the iron Vortec heads with this new Scoggin-Dickey Vortec TPI manifold.

A Vortec cylinder-head runner is approximately 6 inches long. The total intake track length of the different manifolds varies from approximately 11.75 to 14 inches in comparison to the stock TPI's ...

Knight says the main exceptions are the '87-'91 Camaro/Firebird 350-TPI head (casting No. 083, 64-65cc chamber, 1.94 ... However, Vortec heads have additional interchange issues beyond the scope ...