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Thread: Dual Sync vs Large Cap GM?

  1. #1

    Default Dual Sync vs Large Cap GM?

    OK, I have to ask this. I installed a Sniper EFI a few months back on my Camaro and used the GM large cap distributor and haven’t had any problems. Car runs good. My question what would be the advantage of using the Dual Sync distributor? I haven’t done any mods on the large cap, but I see there are mods I can do.

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
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    19,289

    Default

    If your GM large cap distributor is successfully controlling the timing (ECU controlled timing), then you're all set. No need for the Holley Dual Sync distributor.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  3. #3

    Default

    Rotor phasing & better spark output at higher RPM is the only advantage of using the Dual Sync Distributor. Which only matters if you are running a power adder or turning 7000+ RPM

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