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Thread: Is MPFI the only answer for a 396 BBC?

  1. #1

    Default Is MPFI the only answer for a 396 BBC?

    I tried searching through this site for answers rather than start a new thread, but did not find any related, so I apologize if this is beating a dead horse. I have a '69 Camaro that is a X-66 Code SS396 car, so I don't really want to move away from my 396, but I do want EFI. I have what I think is a stock bottom end (I purchased the car from a guy who bought it from the guy that rebuilt the engine, but could not tell me what it was rebuilt with). I did rebuild the heads, 3904390 closed chambered, oval port heads. Comp Cams Magnum Hydraulic Roller LSA 110°. 224°. Duration @ .566" Lift. Quench is good. I have a dual-plane air-gap intake manifold. I have a Summit Billet HEI small cap SUM-850055 distributor with vacuum advance. I also have a CVF Racing Wraptor Serpentine system, with Vintage Air.

    Which EFI system would work that I would be happy with? Initially, I read that the 396 BBC will only run well with a Multi-Port Fuel Injection due to the AFR configuration and the heads. If I can use the Sniper it would be quite a bit cheaper. I have no problem purchasing the Dual-Sync or HyperSpark Distributor. Can anyone chime in with the system they would recommend for my setup? Thanks! Brett Leander, Texas


  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
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    24,208

    Default

    Quote Originally Posted by brettallen59 View Post
    Is MPFI the only answer for a 396 BBC?
    No, but I prefer the Holley Terminator TBI instead of the Sniper TBI.
    https://forums.holley.com/showthread...ator-vs-Sniper (Related Forum Thread)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 11.8:1 comp, TFS R-Series FTI ported intake, BBK 80mm TB, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, 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 MT tires.

  3. #3

    Default

    Great info. I'll look into it. Thanks!

  4. #4
    Join Date
    Jan 2010
    Location
    Brisbane, Australia
    Posts
    1,661

    Default

    You have a half decent setup there.
    What size carb do you have on there? The list number will help.
    Can you list what you're trying to achieve by going to EFI? Gary
    Regards, Gary

  5. #5

    Default

    The carb is a double pumper 750. I'd like the throttle response and dependability/streetability of the EFI. It's not a "Have To". But I don't think I can go the LS route because the car is a X-66 code SS396 car. I think I'd just like the EFI setup. Brett

  6. #6

    Default

    A Sniper plus HyperSpark combo would work great on that engine and won't break the bank. If you have a thicker wallet then go ahead and step up to the Terminator or even MPFI.

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