Doing a carb to efi conversion. ’88 302 efi into an ’84 GT. Hooking up the tank w/ fuel pump now. As soon as that is done, I’m about ready to pour in some petro and turn the key.
Besides not checking all the fluid levels, what are common mistakes in this type of conversion? Is there anything I need to do (or be sure not to do) so I don’t fry the computer?
not meaning to sound like an ass, but why are you going TO efi? and i would say the grounds, make sure they are all good and you don't short anything,
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89 fox, mostly stock, C&L 73mm MAF, bypassed coolant hoses to egr spacer, intake silencer removal, no a/c, all options but power mirrors?? blown cats, msd cap and rotor, bosch wires, autolite plugs, 5 inch auto gauge tach with recal and blue lensed shift light, PAPER FILTER I BOUGHT ONE!!!!!!! felpro gasgets on everywhere accept oil pan and a nice big classic mustang decal on my back window
Power up your fuel pump (without firing the engine) and check for leaks
around the rail and injectors, as well as the lines all the way back to the
tank.
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1992 Deep Emerald Green Mustang GT Hatch, 5 speed, 2.73s, Mac fenderwell cold air intake, '93 Cobra MAF, Mac 70mm throttle body & spacer, Explorer intakes, Mac unequal headers & offroad pipe, Magnaflow catback, Walbro 110lph fuel pump, Jet adjustable FPR, MSD Blaster coil, Accel 8mm wires, FRPP aluminum quadrant, UPR firewall adjuster, stock cable, Granatelli upper control arms.
Waiting to go on: Granatelli lower control arms, and GT40 Iron heads!
Power up your fuel pump (without firing the engine) and check for leaks
around the rail and injectors, as well as the lines all the way back to the
tank.
You know I was just thinking the same thing as 89 stanger... Why would you want to go to EFI? God I love my carburator! EFI deffinately has it's advantages.. especially for a daily driver. However when power is what you want there's nothing like a carburator.
As they've all said though. Grounds can be a real headache so always check them. Not a bad idea to pull and trace all the wires around the engine just to make sure you didn't leave something unplugged or laying loose. After the exhaust manifold gets ahold of it it's too late(guilty as charged) :P
Carb to efi about done. Help 
, msd cap and rotor, bosch wires, autolite plugs, 5 inch auto gauge tach with recal and blue lensed shift light, PAPER FILTER 
