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get about 32mpg on my carb engine now. Will an EFI improve this or will it be the same.
If you have a dyno tuner do the adjustments, you should be able to get 28 city / 38 @ 55mph with a 100% stock 1200. If you have modified the heads, cam or exhaust do not expect to get that much.
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Which EFI would you all recommend.
I recommend an Extrudabody A14
EFI Kit, and Twin Extrudabody ITB. That part is $1300. Get a
Megasquirt ECU, pre-built and use one of the preset 4-cyl maps. Have your fuel tank modified for EFI with return line, baffling, and high-pressure pump. Add the safety relays and wiring. Finally when you have it running, get it to a dyno tuner to adjust the air/fuel ratio.
I'm doing a budget project with factory Datsun EFI and Datsun ECU. I have all the parts, including EFI fuel pump just need to put it all together. I have about $300 in it. This way is labor-intensive but inexpensive. Several guys have already A12/A14 running this setup, so it's a tried and proved method.
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