1995 gt having issues please help

when i ran the codes it has no codes stored since i changed the fuel pump the check engine light no longer comes on so im thinking the problem is several things
i took the h pipe off the cats were busted in half and rattling around but couldnt hear anything from them when it was running so i threw mac unequal length headers and mac h pipe on it sounds great runs a lil better but there is a whirring coming from the distributor and cant seem no matter how i set the timing it still runs like crap. much better but still has a bogging issue at around the same point at 2600 in second gear to 3000 rpm in 3rd only time it does it and the power isnt anything to brag about been years since i owned a 5liter guess i lost my touch with them hahah. does anyone know were i can find a cheap distributor for this car? its the wire distributor not the one with the module on the side thanks for help! i appreciate it

okay i cleaned the maf and inside the distributor got the timing pretty much to were its no pinging so bad runs really strong now no hesitation but now when it gets any torque to it sound like somthing is clanging together never ends hahaha!