Ok I have headers and open element air cleaner but don't really feel any gains in the sotp way someone told me to boost my fuel pressure but don't have a clue how to do it the simple way. Is there and adjustment on my throttle body? or do I have to do it another way.

 

Look under the tech articles. There are instructions on how to modify your stock fuel pressure regulator to be adjustable. Or check the posts on the vacuum operated one. I've ordered mine. It will arrive in about 5 days.

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90 RS Convertible
Owner: Top-Down Solutions

http://www.sc3gfb.org/members/lonsal.html
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what are they chargin for shipping on those vafpr's? from gmpartsdirect.com which btw is not owned by gm. i am just wondering, i just bought one at cost thru my family's dealership and it was 45. partsdirect has em at 41, but are they charging like 10$ shipping or somethin?

btw, took the vafpr apart, the inner disc on the diaphram has a higher ridge, the spring is MUCH thicker and shorter, stronger. and instead of having the cone with a notch in it, its just a disc with an indendation for the other side of the spring. it is adjustable from the factory, but you need one of those little hex wrenches with a hole in the center. and wtf is with were they put the vacuum tube, anybody got ideas on how to rotate it and resolder/weld?