UPDATE: pulled everything back out (only took me apprx 1.5hrs this time to get it out man im getting pretty good only done 5 3.8 pulls in 6 months LOL) but i found a broken oring under the supercharger so i think that may have been my vacuum leak. but the reason i pulled it was the trans only worked in reverse. So im putting my original back in. But while everything is out it got new LIM gaskets, plenum/supercharger gasket and orings, cleaned and painted LIM to black, cleaned the supercharger, painted white valve covers and new gaskets, black manifolds, over scrub down and cleanup then reassemble. it will be awesome and HOPEFULLY run/drive this time ! ill add pics soon!

Couple Pics of what I started with. And now. One after pic is before Manifolds were reinstalled and then one with them on. I need a EGR tube for this car as well if anyone has one for sale? I need one for a 93. My 94 tube is too big to fit hole in supercharger.

Forgot to add that Its a 94 Block with a 93 Supercharger setup (everything from LIM up) The 94 heads have the "roller rockers" in it from factory whereas my 93 did not. My current "mods" are no cat, autolite 104 sparkplugs,new wires, removed intake screen, custom FWI with the chrome pipes running to where my evap canister used to be i just relocated the evap,and 180 degree thermostat. But I have plenty of new replacement parts on it as well, LIM gaskets, plenum/supercharger gasket and O rings, newer coil packs, rebuilt 93 supercharger (done before i got it but it is clean as a whistle inside of it looks very low miles) new IAC valve, oil pressure sensor, new valve cover gaskets. Will be getting new hoses, and full radiator flush new fluids etc. What else should I cover while its out? Note was running with 0 knock retard when it was running in the car while hooked to snap on scan tool, so im planning on a 2.2" pulley soon as well

Normally, you won't see KR until you start putting a load on the engine and you are under boost conditions. 2.2 inch seems way to small for a non-intercooled application. I think 3.1 is the smallest you can go before you need to add an intercooler.

Ok good point on the KR. I didnt even think of that. But my eaton m62 came with the 2.55" stock pulley, I read on here maybe in techinfo about the next size down would be a 2.2" to stay within the safe zone.

Ooops, my bad. I was under the impression the M62'* had the same size pulley as the M90'*.

So, you should be safe with the 2.2" pulley.

Ok everythings back in and running, seems to run pretty good. Except for that it seems to be lacking power. If i get on it, it hesitates and wont accelerate as quicly as it should. When i first got it running it would onl run for a few seconds then shut off, unplug maf and it purred like a kitten so I put the spare one i have laying around (off my old 95 ultra) and plug it in and it runs ok. Could this be the issue not having the correct MAF? I dont really want to spend the 125 for a new one. It also seems to be running super rich again. Smells like my 400 SBC Haha

Um, give us a quick run down again of everything you did with the engine, along with what parts crossed over to the new engine.

I am running a block and heads from a 1994 Park Avenue Ultra, my original Supercharger fuel rail, etc from the original engine and LIM. New plugs autolite 104s, wires, gaskets, etc. Currently have a MAF spare i had from my old 95 ultra in it. runs and drives but is lacking power. My newest thoughts are the BCS or the o2 sensor/temp sensor. My temp sensor wasnt hooked up and i did some research and I guess with it unplugged the computer doesnt know how hot or cold the engine is so it throws fuel in. Im going to try the bcs first I have a few laying around. Everything sounds fine till I give it a decent amount of throttle it doesnt pull very hard just kinda makes noise without any power

If your running the 95 MAF sensor, disconnect it and see how it drives after that. I'm thinking the wrong MAF is fooling the PCM into dumping more fuel than it needs.

The coolant sensor disconnected wouldn't cause the PCM to dump fuel, that would just cause the engine to get hotter. If anything, it would cause it to lean it out AND make the fans turn on.