I have a 62mm Hemco plenum and a stock throttle body that was ported to match it for sale. Comes with Plenum and throttle body with VAC block assembly. Holes on vac block are recessed due to hole being stripped on the top. TB does not come with any electronics or throttle lever. $260 shipped. Also will throw in a stripped manifold for a extra $100 .
Here is the HEMCO main site link to see price
Hemco Machine Company, Inc. - Buick Turbo V6 Plenum
Here is the HEMCO main site link to see price
Hemco Machine Company, Inc. - Buick Turbo V6 Plenum