hey,
my 88 gx has a problem, it loses power at 3700 to 4000 rpm it just bogs and seems to lose it between those rpms but everywhere else is fine? any ideas?? also i want to know if i have enough back pressure to open my auxiliary ports i took out my cats but have the 2 stock mufflers still is that enough???

 

The search page is your best freind on this one, search for "3800 rpm hesitation" it's a common problem that has to do with the engine grounding and/or the lack there of. I actualy have it right now but i havn't got around to adding extra grounds.