Chevrolet Repair: fuel injectors, fuel injectors, fuel tank

Question
89 gm g10 with 4.3 the van stalls right after i start it. i checked the fuel pump and it seems to be ok. also have new pugs and rotor and cap.
the van sat for 8months so i drained the tank and replaced with fresh gas. the injectors dont spray like a cone instead thay just trickle a little gas. is the injectors the problem if so how can i clean them. thank you in advance for any help you can offer.  

Answer
well short of taking them off which is really involved, you should use fuel cleaner in the fuel tank. turn the key on but no engine on and let sit for a few minutes then start it. do this enoguh and the gas with the cleaner will get in there and start to do it work.

keep me posted.