97 cobra wont start???

Ok, I've searched my problem out thru the forums. But still need help. The car was fine 10 days ago. and now it just turns over and wont start. this has happened one other time and cured itself within minutes and started. but this time it seems that it doesnt want to clear itself. 66k miles on the car. looks like it still has original Motorcraft battery. blenty of cranking juice(as it turns the motor over fine. I'm thinking fuel might be my problem. it tries to light off but wont. I cant check the FP at this time but that is my next step. Fuel pump sounds good when i turn the key on. wierd thing is that the starter sounds different and the motor almost sounds like it has no compression when cranking over. Do these motors just sound that way when they dont start?? Is is possible that is floods itself. If so, how can that be? Also in the past year or so, every 30 starts or so it starts and has a rough idle, it runs rough for about 2-3 mins and clears up. I'm confused!

I've tried: unplugged the battery for 30mins, tried starting the car with the throttle on the floor(to allow air it and no fuel, which it almost started). I'll get the FP gauge and check that next. I'm suspect to the FPR. Is it possible that a bad battery can turn the engine over but some how not allow the car to start?

It was running fine last time it was out! HELP ME.
Thanks, Jay

I know the starter sounds wierd but it is turning the engine over. I'm almost suspect of bad gas or the FPR or possible clogged fuel filter(been changed once in 66k miles). I'll keep yuh updated.