the longer the car sits the harder it starts...it will barely start and idle at 500 slowly move up to 2000k

where do these most commonly leak th pressure out from? the shrader valve used leak but i replaced with a new one, it still does it...dont think tis the gas cap, when i refil with gas it bleeds out alot of air...any ideas? i never smell any gas
it does this if it sits for about 2 days, about 1 day it starts hard but not as bad

 

Mine did that to, i was guessing it was just running back into the tank. Then one day the fuel pump quit whining and it quit doing it.

 

A faulty check valve in the fuel pump can lead to a hard start condition.

 

damnit, dont tell me that, its got a walbro 255 in it!

 

Its a possibility, but it could also be a leaky injector or a bad fuel pressure regulator.