so i have an electric in-line fuel pump, im going to be swapping this motor into another Z. "the book" doesnt explain this procedure, since the "L" series came with a mechanical pump. help me! also, does anyone know any "do's and dont's" for swapping a L28(carb'd) into a 240z chassis? i know the basics,but every swap is different. any info will be helpful.

If you're talking about releasing the fuel pressure in the efi car:

Just disconnect the 12v to the pump (fuse, connector, etc.). Start the engine and let it idle until it dies. This appies to EFI where pressures are hovering around 50 psi. If we're talking about 4 psi (carbs) then just open the fuel line...a little spillage at best.

ok , sweet. thanks man, that was "EZZZZZZZ" . that other dont know read very well or something.... i even said it was carb, so there would be no cold start valve

Whatever! If you had been a bit more clear I wouldn't have even answered. Who even worries about releasing the fuel pressure on a carbed car. If I 'dont know read very well or something....' as you so eloquently put it, maybe you need to write more clearly and then you wouldn't have to come up with such a response. Hang in there, one day you'll get it. Can't wait to hear your response!

so i have an electric in-line fuel pump, im going to be swapping this motor into another Z. "the book" doesnt explain this procedure, since the "L" series came with a mechanical pump. help me! also, does anyone know any "do's and dont's" for swapping a L28(carb'd) into a 240z chassis? i know the basics,but every swap is different. any info will be helpful.

The 280 is the same as the 240 so there wont be any difference , everything will connect the same. With the exception of the fuel pump the 280 head will have the port blocked off for the mechanical pump so you will need to go with the electric. Be sure to provide a automatic shutoff for the pump in case of a crash so you don't have gas spraying all over if the ignition switch is still on . gary

right. thanx gary. your so informative!

Don't they make low pressure fuel pumps for carb'd engines? You could use the same L28 wiring if you wanted to. Otherwise, if you'd have to use your own wiring.