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I have an 89 F-250 with a 351. It's been sitting for over four years. I hope to start rebuilding it in the near future with many upgrades, one of them being a MAF conversion. My questions are which size maf sensor, which computer, and which injector wires should I be looking for. Also should I upgrade to 24 pound injectors? Other upgrades I'm considering are a 3.85 stroke crank, Port and polish the heads, new lower intake, and possibly a very mild cam.