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I'll just leave these here. To say I'm happy tonight is an understatement. To see years of port development result in this leaves me very happy. Don't forget to add 10cfm to these figures due to Anthony's bench running below a superflow bench. Even without that the numbers are truly impressive and particularly as it's made thru a near stock port window and the lift points it makes peak flow. I've said it before and I'll say it again, the smallest port doing the biggest job. Is there anymore in the ports? Yes there is. Are Cam and I finished? Hell no!!!! The biggest flow number was attained thru a slightly larger port opening. It's suffering in the mid lift but I'm confident I know why and we will improve that. The other port is the original port with a few more tweaks. It's only very slightly over stock port window. It's flowing a real 270cfm at .700" lift. Sent from my iPad using Tapatalk

Keep trying u can make anything work with time i run ef inner door handles on a xd Sent from my SM-G950F using Tapatalk

Forgot to add that these head was flowed without manifold. Just a bellmouth on the end of the port.

Agree with Dave demmo... sounds like non return in pump is faulty or ya have a loose pump fitting. Sent from my GT-S7583T using Tapatalk

Pinch off the fuel return line, before you stop the engine, then see if the pressure still bleeds off. If it still bleeds off, and you've confirmed no injectors are sticking open, (I'd double check for sticking injectors, after the engine is warmed up a bit) then the fuel pump is faulty. I'd fix the pump first, then go after the next issue.

Check the vacuum line from the fuel pressure reg to the intake is connected on both ends and doesn't have any splits

central locking will be needed to unlock the door again.. need an unlock button on the dash.. this MIGHT do the trick? i cant brain it right now.. http://www.ebay.com/itm/Polarity-Reverse-DC-Motor-Control-Rocker-Switch-30-Amp-12V-DPDT-Momentary-/231403233561

You know that with old cars there will always be something else you should be spending the money on... Just buy them.

I'm running xh trims in my xf, and tried for about 3 minutes to marry the two different systems up and gave up. I now have round door lock pins in a square hole lol