Wont Start

I recently bought this car off a guy from work. He Test drove it for me since i cant drive standard. He started and turned it off and on multiple times during the day, except he had to hit the gas or it would stall at first. He sells it to me drives it to my place and goes home and i try starting it and it wont start...most of the time(usually ends up starting every 1-2 days while pumping the gas). The engine turns over fine but theres no fuel going to it and no fuel pressure at all(disconected the line just above the fuel pump and nothing). So far i replaced the fuel filter/pump and the battery and no change whatsoever. I read posts about the main relay making it not start when it was hot out so i woke up at 3am and it still didnt start. Im wondering if anyone has any ideas of what it could be?
its a 88 honda prelude with a swapped 88/89 prelude SI engine if that could mean anything

Fuse, Filter, Fuel Pump Etc., But The Main Relay May Be Bad, It Runs The Fuel Pump.

Problem Solved!
Mechanic fixed it, wasnt too pricy. It was a friends mechanic who spoke spanish so i just got the sumary. Sounds like it was a problem with a cable or something going to the fuel pump. He fixed it and now it runs perfect.