Seems Holley is no longer making the HSR for vortec heads. They have no more satin and was told only 18 polished units left then no more.

I asked if they would sell just a plenum then I could use the speed master lower manifold but they won't sell by itself.

What's my other options?

My understanding is the pro flow well don't flow.

The ram jet adds up big time with all the components.

The speed master plenum looks hideous to me?

Thoughts?

Classifieds or else custom made plenum.

Proflo xt isnt a bad intake. Injector ports hang into the runner abit but for your typical 1205 gasket type or vortec equivalent, its plenty of intake to make decent power. All depends on the build and what vortec type heads you are working with

Or vortec single plane and elbow but most dont like the looks

I have seen the plenum for sale new by a company on Ebay

If you could give me more info it would make my day.

u can take some 400 grit paper , or scotch brite pad to the speedmaster plenum to give it a dull or brushed finish