I have the Edelbrock headers on my 94 4.3 V6. Awsome power and goes strait to redline now. Set it up with a free flow intake (K&N), High flow cat and a flowmaster and you will be buying new tires in a week. Pain in the (_*_) to ininstall. Had to remove the alternator, power steering, and bunch other crap. With a 3" body it should be a snap.
-Troy 'WeaZle' McCarty