New spiders, regulator, fuel pump..... Anyways I get sporadic fuel pressure sometimes it shoots out when the key is turned on sometimes not. And the fuel pressure drops fast don't hold. It I spray starter fluid it will start and stay running sometimes but runs rough as it its still starving for fuel. And I have noticed it I clean my engine another words spray it it does this. This is the third motor and all previous has done this and if it stays running it will eventually get better and smooth out and runs great compared to the usual. Any help would be greatly appreciated.

 

Do you have any trouble codes?

Sounds like you have a sensor that is not making good connection, have you inspected and cleaned the wiring harness connections for the fuel system?