[aintmisbehavinn]

Also check your gas tank by placing an glass in line fuel filter at the pick up. Probably sucking crap out of the tank.

Mine would die at 3K. Then simply quit after 20 minutes then start right back up; just long enough to suck more crap back into the line and fuel sock. I did everything above including carb and new pump, no go with rusted out tank and sock that clogs.

Don't waste your time or money on everything until you are positive your tank is clean. I replaced my lines and tank, runs like new. If you have a long enough fuel pressure gauge, install, take it down the road and watch the pressure drop like a rock. You won't detect it at idle on the driveway or dyno. It must be under load. Any inline filter after the pump may not show what's really going on, pull the sock and see if it's clogged first, then go from there.