I'm starting to panic. My goal is to have my 4.2 (90, YJ) rebuilt and remove all emissions junk. I've read I can go to an HEI distributor and Motorcraft 2150 carb and I don't need the computor, ICM, or most of the emmissions sensors, etc., I go to O'Reilly and they know nothing unless I have part #'s. Since then I looked on EBAY and found suppliers but I'm unsure of what I am specifically to order. Can anyone help? Some of my questions: Does a 2150 bolt right on the intake or do I need special adaptors/gaskets. Do they come with the carb? Do I have to modify the linkage? Can the old air cleaner be used (PCV and vacuum doors for heated air, etc.). Can I eliminate the EGR tube between manifolds since all the other EGR parts will b eliminated? Thanks for any help!