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    aftermarket throttle bodies

    will the bbk 78mm throttle intake fit my 2003 grand marquis

    #2
    It may, but I'd be researching throttle-bodies and MAF meters and INJECTOR SIZES before you go changing that sort of thing. I don't know what lb. injectors come in the '03+ but you may have to go 24-40+ depending on if you're turbo-or-supercharging it.

    If nothing else, you'll need a CUSTOM TUNE flashed to your ECU, to make everything run properly, going that big.
    ,
    Slicktop '91 GS HO 4.30 rear. '82 Mark VI Tudor HO, '90 F-150 XLT, '62 project Heep, '89 Arizona Waggin' and '88 donor in PA, getting combined.

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      #3
      i was going to do headers, a cam, and a custom tune with that

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        #4
        Okay, all I know is the older HO 5.0 motors are restricted to about a 70-72mm TB size with their 19lb orange top fuel injectors, try to go too big on MAF + TB and you'll run into fuel starvation issues with the stock injectors. I think I've seen 24lb injectors with gray tops, and I know 40lb injectors exist, but dunno if they're all aftermarket or who makes good ones.
        ,
        Slicktop '91 GS HO 4.30 rear. '82 Mark VI Tudor HO, '90 F-150 XLT, '62 project Heep, '89 Arizona Waggin' and '88 donor in PA, getting combined.

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          #5
          the stock injectors are 19 but im going to order 24

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