1988 chevy truck sputters when you rev no power

I have an 88 chevy truck with I believe the 350. I removed the throtle body off my truck and put it into my friends who has the exact same truck and it ran fine. I have replaced the egr valve, throtle position sensor, map, fuel pump, catalytic converter, oxygen sensor, fuel filter twice yet problem still
persists. I think even a couple parts in the distributor were replaced. the truck runs almost as though the timing was off. Never starts on the first crank..... before replacing the sensors it would rev up and down but now is somewhat stable. Has no power .... so little that it wont pick up speed at all and if you accelerate gradualy its fair but a quick rev will quickly show sputtering.

I have reason to believe the truck has a short only because i'm brake light would flash as if it had a bad ground or something and also the truck keeps on burning my rear light bulbs out although that could be related to the actual connectors on the rear light assembly.

I am by no means a pro mechanic so is there anyway i could test all my electrical including sensors? if so how. could it be something in the ignition system such as the coil? i'm all out of ideas here please help. I would apreciate any suggestions or ideas. thanks.