Marren makes rails, converts your intake, and are pretty full service. Have been around a LONG time, quality stuff, and inexpensive compared to most:
https://www.injector.com/cart/pc/home.asp
The did a Pontiac intake for me in the 90s and it was 1st class work.
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song:
http://www.youtube.com/watch?v=7zKAS...ature=youtu.be