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Old 01-11-2009, 06:00 PM
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SBC intake - mid range power

I am building a 383 for use in a low rpm (5500 and under application) with emphisis in midrange power. I was thinking an edelbrock rpm intake, but was unsure about a regular performer intake. What do you think?

I should probably add the rest of the combo, 383 with L98 aluminum vette heads, 9.4 to 1 compression--camshaft undertermined at this point. Trans is a 700r4 with 3.55 rear gears---its in a truck. Looking for some low end grunt with great midrange power--5500 rpm is about the max i will run it at--probably a little less. Want it to be docile to be driven dependably anywhere and hopefully run a decent time at the track--although that is secondary for me.

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Old 01-11-2009, 07:41 PM
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Edie RPM probably too big for you. I would think the performer would a better choice.
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Old 01-11-2009, 07:48 PM
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The performer would probable be just right. If you are concerned about low end.
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Old 01-11-2009, 07:56 PM
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The Intake Manifold I have isn't made under the same name anymore, but it's a Dual Plane Holley "Contender" P/N #300-36. They are designed for low-mid grunt, and can still breathe should you chose to port match and rev higher than anticipated.

As the others suggested, also.
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Old 01-11-2009, 09:06 PM
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In my experience on the DynoSim, a high-rise dual-plane intake such as the Edelbrock RPM or RPM Air Gap or Weiand Stealth or Stealth Air Strike or Airflow Research RPM or Professional Products Typhoon intake, #52021 ($130 on ebay) or Crosswind Air Gap, #52026 ($170 on ebay) will make more power and torque under 6000 than a low-rise dual-plane such as the Performer.

F'BIRD-88 tried to tell me this a while back and I argued with him. Well, I have since come around to his way of thinking.
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Old 01-11-2009, 09:38 PM
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Well them L-98 Heads are a Little on the small side for a 383 Build . And as 5-Speed Posted that Holley #300-36 Intake would work well But is hard to Find . I think a Edelbrock Performer EPS Would be dead on for this Build . Dyno's out at 5 More H.P and 9 Ft/lbs then the Regular Performer Intake . Stay Clear of Them imported Intakes they need some fitting
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Old 01-11-2009, 11:31 PM
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Your thread title has been edited. We're editing the subject line on threads to strengthen the search database, we know you're here with a 'question', being more specific in the title betters the chance of more hits in a search.

See jmarks readme in the forum.
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