Need help!! KA PROBLEM!

[hanz]

ok it is a 89 s13. so i just finished my E to DE swap last week. everything was in place and ready to go (was hoping)

so i start it and it idles like a bitch.. maybe idles for like less then a min then just dies.. if i try 2 give it gas at about 1500 rpm or even less it'll also just die.
so i got another MAS and ECU. today tried changin both but still same problem.

my friend removed all emmision for me, supposely did it correct.
all vacume hoses are fine.
the car has been sittin for about over a year from the previous owner.. i havnt changed the fuel in the tank so that is one question i have..

how can i remove fuel from the tank without going thru the trouble of dropping the tank..
any suggestion from you guys??

any ideas of why my car is trippin like that?? couple ppl said the old fuel has nothing to do with it but i think it does so thats why i want to put new fuel and some injector cleaner in there..

but other than that does anyone has any ideas? suggestion? similar experiences?

also can back pressure do this?? i have just the exhaust manifold on with no down pipe no nothing.

well hope you guys can help me so i can finish my project once and for all.well atlease the engine part. interior still gutted like a mufuker.lol

P.S. car has a walbro 255 pump.. timing was fine when the dude i got it from had it, car was running fine. well seemed like it lol..

engine is from a s14 OBD1 my car is an 89.. did switch the distributor. and i believe i did that correct...

THANK YOU! in advance

-HANZ-