Some good info in this article on engine specs even if it is a Belt Driven Vortech Supercharger dyno test vs a Turbo test.
https://www.hotrod.com/articles/hppp...-installation/
Don Keefe did a great job on the Article and the Pictures, this article was done many years ago.
A couple of comments:
The engine was a 2-Bolt block.
The engine did not have a large duration camshaft
The engine used readily available parts from the aftermarket, except for the Luhn Supercharger Brackets which Luhn has improved several time over the many years since that dyno test.
Vortech says the Supercharger was good for 820 HP and Luhn made 860 hp, the highest hp dynoed ever for that supercharger.
Some of the parts in the article (as well as the companies who made them are no longer the same company or not there at all).
Indian Adventures being one of them.
SO IF YOU ARE LOOKING FOR EXPERIENCE IN BOOSTING A STREET PONTIAC THAT MAKES 900 LBS/FT OF TORQUE AT 4800 RPM
GIVE LUHN A CALL.
Tom V.