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Thread: IAC options for SBF, Holley Hi-Ram intake & coils on valve covers?

  1. #1

    Default IAC options for SBF, Holley Hi-Ram intake & coils on valve covers?

    My '86-'93 Fox Body Mustang PWM IAC hits on Holley smart coils because the IAC is so long. If I flip it 180°, then the plug hits my hood. Are there any smaller IAC options out there? I'm trying to stay with a PWM IAC for response time purposes. I know the GM stepper-type IACs seem to be about half the size which would alleviate my interference issues, but would I develop idle issues going this route. I'm running a 1400 HP twin turbo SBF347 with solid roller cam. Thanks for any insight.
    93 LX Sedan 347 Twins TH400...8.46 @ 162
    91 LX Sedan 410 Novi 2000 5 speed...10.90 @ 137

  2. #2
    Join Date
    Dec 2009


    Does your Ford PWM IAC motor have the straight or 90° (LINK) connector?
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Holley Dominator MPFI & DIS, 36-1 crank trigger, 1x cam sync, 200A 3G alternator, Optima Red battery, R134a A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans, Frostbite 3-core aluminum radiator, Pypes dual 2.5" exhaust, off-road X-pipe, shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, BMR upper & lower torque box reinforcements, LenTech Strip Terminator wide-ratio AOD, 3000 RPM converter, B&M Hammer shifter, Stifflers trans crossmember & driveshaft safety loop, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

  3. #3


    90° currently.

  4. #4


    Which Holley EFI system are you using? Andrew

  5. #5


    I have the Dominator EFI.

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