Reply to "Howards Camshafts (Summit)"

Mike I am in full agreement regarding swapping the Holley manifold for the Performer 2V intake manifold.

For your application I am strongly opposed to any dual plane manifold with a cut down plenum divider, or a dual plane manifold used in conjunction with an open spacer below the carburetor. This is due to your expressed desire for improved low rpm performance. Like a single plane manifold those things negate the purpose of having "dual planes" in the first place ... i.e. extending the time between pulses within the intake manifold.

I also believe you need to reduce overlap. Since your Pantera's engine is already set-up for a hydraulic roller cam, I'd suggest swapping the Comp Cams camshaft for the smallest Crane Cams hydraulic roller (HR216). The only thing besides the cam that "may" need to be swapped is the distributor gear. The Crane camshaft is ground on a steel core and needs a steel distributor gear for compatibility.