1. dont call that neon a slopar, the real mopar died years ago. lolol.
2. you should be able to run a 3.4 with those mods, but instead of throwing on the pulley and seeing what happens, you should invest in an aeroforce wideband gauge! itll let you scan your car and stuff to see how much knock you are producing.
3. you are going to need a tune, regardless of what you do. how did you tune for the 3.6 you have on there now?
4. take all the crap outta your trunk and run him again.