Fuel Blockage - What to check??

[autickfordfairmont]

Hey guys, a few months back my car was running really bad, so took it off to ford to have checked, they cleaned injectors, cleaned & regapped spark plugs (Should have changed so i have now) and found it was oversupplying fuel so they replaced the fuel pump. Anyways, ever since it has been alot slower, was doing 0-100 in 8 second after they had it it couldnt even get 12 sec. Which i was ****ed about, & ford recon it was perfect.
I havent had a chance to get it checked elsewhere yet, (Lack of finances) but lately it wouldnt rev past 4000rpm, like it was starving of fuel, (Fuel filter was replaced only 4000km ago), but it has gotten much worse, it wont rev past 3000rpm. if you are going down hill (or on the flat in first or second), and very very gently acceleration it will rev out further but as soon as you give it a little throttle it shutters and cuts out like its not getting any fuel. I thought, oh , bad batch of fuel, & blocked filter again, so i replaced it, but it is still doing it.
What else should i check??? How hard is the fuel pump to get out and clean the strainer??? is there anything else i should check / clean????
I was just reading another thread about cars cutting out round corners due to pickup problems, and rotating it fixes it, whats the deal with this, what do i rotate & how.

Cheers.