Get a performer, it will work better.
This is a cross over intake. I know the T stood for torque and I want to say the M ...Torque Master er sumthin
That is an early design, small plenum for the street single plane.
As the plenum gets smaller, the runners get longer in theory.
You will effect the manifold vacuum by using this intake compared to a dual plane.
For instance, weiand single plane/plenum vs LD340 dual plane/plenum
Weiand=9.5''@idle
LD340=12''@idle
With the same motor/cam and nothing changed other than the intake.
Plus the 180 design dual plane pulls harder on the carb by separating pulses/runners so they hit every other each plenum every other intake stroke.
