I am new to the raider and have been having trouble finding compatible headers any knowledge of where to buy would be awesome. Dont know how to add a pic so it is attached to file thank you for your time

well first off welcome. not bad little raider i like the rims and tires.
to add photos we must use a photo share site like photobucket. or the like.
how many miles does it have, 5 sp or auto.
and why are you looking for a header?

5 speed about 150k just bought it and have had a bunch of trouble out of it so its been being built on and my exaust manifold isnt in good shape a few leaks and all and im trying to up the performance a little at the same time trying to make my motor look good also just painted parts of it cleaned it up wanting it to run well when I do finally get to drive it

The factory manifold on the 88 is a pretty decent piece. It's a Tri Y design that is tuned pretty well. Most aftermarket headers are not as good.

Headers for these trucks are pretty few and far between. There might be some out there, but they ain't cheap if you find one.

Like Kevin said, the stock manifolds on these trucks are pretty good. I'd say source a non-leaking one and go back with that. I might even have my old one still. Shoot me a pm.

You can probably source a used manifold from a junkyard on car-part.com . If you really want headers, Pacesetter makes some that are available at Summitracing and on ebay a lot of times.

as far as running goes you might want to think about getting a head gasket kit. and pulling it. have it pressure checked. put new stem seals on the valves and jet valves and replace o rings.
hopefully your head is not cracked check your timing chain set up and silent shafts flush your radiator.
find a stock manifold and invest in a webber carb if you have a bad carb. of course its a debate over stock or after market
for carb i like the stock ones when they work right. but to many things to go wrong and the price of them u might as well go after market. i prefer the stock manifold over header. i didnt notice any difference in power just noise and heat. theres a lot of knowledge on this forum and all you have to do is ask. the 2.6 is a love hate motor. haha
there good if you take care of them. rebuild them right. and dont haft arse them. iam getting ready to rebuild another one and iam keeping the balance shafts. i dont like the feel
with out them they get buzzy in 3-4000 rpm range.

All that has been done im now losing pressure to my radiator (thinking reason i blew my hg in the 1st place) so think it is the fan clutch i was told not 100% sure radiator is not clogged

you have changed h/g ? did you have head checked? resufaced?
you did use new head bolts?

all but new headbolts