Fuel issue, a little help plz

ZRS90sc

Registered User
pretty much stock car, exhaust, 5% pully.. Starts hard about 70% of the time, sends out a lil black smoke and can almost smell pure gas..also when i'm driving, it bucks when i push it past 3/4 throttle.. I'm thinking FPR, because i have new 190lph fuel pump and filter, plugs, wires, TPS and coil. Fuel pressure is 33 at idle and 40 when revved, but when i shut the car off it slowly dwindles down to 0. So any help would be appreciated...I really drive her again soon!!
 
If the fuel pressure bleeds down to zero, then you have fuel leaking down somewhere, either a stuck open injector(sounds like it by what you described) or a fuel pump leaking down.
 
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