'79 Ford Fairmont 4-dr EFI 302 from 95 GT '91 mustang wiring harness(two plugs at booster) A9L Explorer MAF meter fox upper intake fox distributor fox throttle body and EGR spacer fox headers All stock except E303 cam and Paxton adjustable FPR(40psi vac line off) Mark VIII electric fan 6G alternator V8 4R70W trans 12" stock V8 converter Optishift controller 2.5" y-pipe into single 3" straight through muffler no cats no smog no EGR valve 8.8" 3.55 gears Replaced: PIP, fuel filter(Russell billet 40-micron 6AN), fuel pump(Airtex E2000), plugs(Autolite 25's), wires(Xact 8MM), cap, rotor, TFI module, coil, thermostat(195 degree), MAF(from a 95 GT, ran worse), computer with A3M, TPS is good(Optishift monitors/displays voltage), All grounds are connected Problem: Motor will run half-ass if base timing is above 20 degrees. Spits and stutters or dies if timing is set lower in park or in drive. Very laggy throttle response, and under load revs are not clean. Also feels like it doesn't have any power. KOEO codes: 34 67 and a bunch of codes in the 80's(no EGR or emissions related stuff installed and fuel pump is wired on a switch) EEC will NOT perform KOER test(tried 3 different scan tools plus a test light) Thoughts?