347 HELP...

Discussion in '1994 - 1995 Specific Tech' started by traewolfe, Mar 21, 2013.


  1. traewolfe

    traewolfe Member

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    OK, just got a 347 motor to put in my 95' GT. Scat crank, eagle H beam rods, keith black flat top pistons, comp cam 530 lift, roller rockers, edelbrock highly ported heads and cobra intake. I also have a powerdyne supercharger. Couple of questions. Should I use the SC with this motor? Is the cobra intake going to "choke" it? If so, what should I use? The compression is going to be about 10:1.
    Also just had the T-5 rebuilt. What gears would be recommended as well?
    I have a pro mas 92 maf with 60 lb injectors as well. Probably too much if I do not use the SC. Any suggestions would be appreciated![​IMG]
    #1
  2. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    search...this combo has been done for many moons
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  3. traewolfe

    traewolfe Member

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    Thanks for the help!...NOT
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  4. revhead347

    revhead347 I have face herpes.

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    Yeah, I think you will be ok for low boost. It really depends on the cam more than anything. If you have too much overlap on the cam it probably won't run so well. Do you have any more info on the cam? Gear is more of a personal preference thing, but I wouldn't go any higher than 3.73:1 with the supercharger. You can run the T-5, but even if it's been rebuilt I wouldn't get too upset if it broke.

    Kurt
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  5. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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  6. traewolfe

    traewolfe Member

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    It's a Comp Cams with around a 530 lift, that's all I know.
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  7. revhead347

    revhead347 I have face herpes.

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    Even if you knew the cam card, I probably wouldn't have enough experience to tell you if it will work right. I might have a rough idea, but not for sure. I know you could make it work with the supercharger if you had the right cam.

    Kurt
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  8. VibrantRedGT

    VibrantRedGT "STANGNET'S PENGUIN SMACKER" Super Mod

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    Holley Systemax intake would be a better choice over the Cobra. Having the right cam in these cars is very important. Most of us went with a custom cam with a 114 lobe so we wouldn't have idle issues, etc. A little boost shouldn't hurt it with matching fuel upgrades (pump, injectors, etc.) and ignition upgrades (coil, plugs, wires, box).
    #8
  9. 99FiveOh

    99FiveOh Advanced Member

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    The OP's car will be tuned by a very competent tuner so lobe separation is a non issue. I'll be doing all the work on the car and I think we have the fuel system figured out.

    T5 won't last long behind a 500hp monster!
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  10. 02 281 GT

    02 281 GT Active Member

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    I was gonna say. Better be prepared to rebuild it again, and again, and again...
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  11. 99FiveOh

    99FiveOh Advanced Member

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    Nah, I'll have him talked into a T56 swap later on!! lol
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  12. revhead347

    revhead347 I have face herpes.

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    I don't think there would be that much of a gain going to a Systemax 2 with those heads.

    Kurt
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  13. 99FiveOh

    99FiveOh Advanced Member

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    Looks like I may be taking the 347 off the OP's hands. My S trim and that motor will really enjoy each other's company!
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