You might want to try a turbo install?

Most simple would be installing a turbo set-up from a 1978 3.8 turbo Regal.

Example: http://www.turbobuick.com/forums/threads/1978-buick-regal-sport-coupe-turbo-check-it-out.377083/

Or a 1981 Turbo Trans Am 301 V-8.
Try & get a complete unit w/4 BBl quadrajet carb.
http://www.ebay.com/itm/1980-Pontiac-Tur...5ea0ef7&vxp=mtr

http://www.2gta.com/1981ta.html

There are a couple guys on this BB that can post some pics of the turbo set-up on there inline 6's. Guys!!!

W/minimal mods, you can bolt up a set-up like this & make more power than bolting on an intake, 4 barrel carb, headers, cam, ignition, etc.

MBHD

12 port SDS EFI