This past summer I replaced my exhaust manifold due to a crack where the 6 downpipes met, long but not that hard of a project. Anyways around the same time I filled the A/C, Unfortunatley I overcharged it a bit, not much though. I noticed shortley after these additions that I had a loss in performance, no get up and go and also downshifting more often.

I havn't done much to try and improve performance yet, but have thought about evacuating the A/C and possibly removing it thinking it might free up power on the engine seeing how it wont have to turn the A/C pump anylonger. Buying a shorter belt could make this possible, but i dunno...

What do you guys think I should do to try and resolve this?

BTW, 1997 JGCL 4.0l 4X4 @ 127000miles