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    EGR Vacuum Source/ Vac Advance source

    Alright, so I bought an EVTM, and I am beginning to decide what wiring and vacuum stuff I can eliminate at the carb swap. The wiring seems to be straightforward, but I have some questions about the EGR, and also what do use for a vacuum source for the vacuum advance.

    Currently, the EGR valve source and vac. advance vacuum sources are "looped" into the same vacuum "circuit", if you will. The problem is, there are a bunch of temperature sensors involved in this loop that open and close smaller loops in the circuit depending on engine temperature. I want to elminate these temp sensors, and just have a single vacuum source for the vacuum advance, as well as for the EGR valve.

    For the EGR valve, can I just hook that to the main vac. port at the back of the intake? Or do I need to go somewhere where the vacuum is timed, etc? For the vac. advance, is that timed vacuum, or should I just use the rear vacuum port? The carburetor I have (Edelbrock 1406) has a timed and regular vacuum ports on the front. Which carb port (if any) should I use for the vac. advance?
    **2012 Ford Mustang Boss 302: 5.0/ 6 spd/ 3.73s, 20K Cruiser
    **2006 MGM,"Ultimate": 4.6/ 2.73/ Dark Tint, Magnaflows, 19s, 115K Daily Driver
    **2012 Harley Davidson Wide Glide (FXDWG):103/ Cobra Speedsters/ Cosmetics, 9K Poseur HD Rider
    **1976 Ford F-150 4WD: 360, 4 spd, 3.50s, factory A/C, 4" lift, Bilsteins, US Indy Mags, 35s Truck Duties

    #2
    usually egr on a carb vehicle is connected through a temperature controlled valve so it won't open when cold. it also needs to be on some sort of vacuum port that will keep it shut at idle, and ideally at WOT, but definitely at idle. unfortunately i've never really dealt with carb egr, and definitely not on anything that didn't have miles of other garbage in the way so specifics I do not have.
    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC grandpa spec white and cranberry

    1984 Lincoln Continental TurboDiesel - rolls coal

    Originally posted by phayzer5
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

    Everything looks like voodoo if you don't understand how it works

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      #3
      Well, if I leave all of the sensors intact, and just remove the wiring from the carb (stepper motor, etc), I should be okay. I just wont be able to remove the MCU, as the wiring for the vacuum ports that the EGR valve is hooked to also runs through the MCU. I guess I'll retain those sensors, and eliminate any other wiring I can.
      **2012 Ford Mustang Boss 302: 5.0/ 6 spd/ 3.73s, 20K Cruiser
      **2006 MGM,"Ultimate": 4.6/ 2.73/ Dark Tint, Magnaflows, 19s, 115K Daily Driver
      **2012 Harley Davidson Wide Glide (FXDWG):103/ Cobra Speedsters/ Cosmetics, 9K Poseur HD Rider
      **1976 Ford F-150 4WD: 360, 4 spd, 3.50s, factory A/C, 4" lift, Bilsteins, US Indy Mags, 35s Truck Duties

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