hi i have a 1990 22re built with a soild axel swap and leaf spring swap with 40 in tires
i drove it home the other day and started lossing power and vac leak
replaced all vac line, fuel filter,intake,maf sensor,distubitor,cap rotor,and coil
truck at start up runs fine and idles pefect at 900 rev it it bogs down a bit then pics up then you drive it down the road and thiers no power at all it takes 5 min just to get to 3k rpm just cant figure it out
btw if you unplug the tps sesor the truck runs the exact same not a change with or with out it thoughts thanks for your help

 

It might be a restriction in the exhaust system.

 

to be honest with ya it has a header and then a small pipe back to a muffler it does have a exaust leak tho thoughts