Ok so I just got my car back from the shop wednesday and I've been having problems with it starting.(just did a JDM swap) if it sits for a while it will start right up, but if I drive it and then park and shut it off and then try to start it right back up it wont start. acts like it is out of gas but its not. also I have figured out that if I take my fuel filter out and empty it, put it back on and then try to start it it will fire right up but still hesitates a little at first. I use premium gas and have tried octane booster already. any ideas?? and also the car is definately not running as fast as it should be...