Best EFI intake for torque, driveability, power

17699 Views 16 Replies 11 Participants Last post by tom.moss1949, Jul 8, 2009

FoMoBro

Discussion Starter · Jul 5, 2009

What's the best EFI intake for a 331 stroker with AFR 165mm heads and a Ford Racing M303 cam, if the goal is driveability and torque first and power second? The choices I'm aware of (in the order I'm interested in them) are

BBK SSI
Edelbrock Performer 5.0 RPM II
Edelbrock Performer 5.0
Ford Racing Cobra "replica"
Trick Flow Street Burner
Professional Products Typhoon

This is going in a 64.5, so it also has to fit under the hood, which makes the BBK an unsure candidate. I'm starting a separate thread in the Classic Mustang forums to see if anyone has ever tried one in a first generation.

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1 - 17 of 17 Posts

apollo12

· #2 · Jul 5, 2009

rpm II gets my vote, what is a M303?

bpitts

· #3 · Jul 5, 2009

Bbk ssi.......................

ttopstang

· #4 · Jul 5, 2009

i would stick with the edlebrock. i also like trick flow and holley.

DO NOT GET THE BBK!!! ive heard of installation issues, no real power gain, and the runners are all different lengths because its just for looks.

justintx75

· #5 · Jul 5, 2009

apollo12 said:
rpm II gets my vote, what is a M303?

m303 cam ????????? if your spending the money for alloy heads and aftermarket intake why not get a custom cam in stead of 20 + year old letter cam?
heads--1300.00
intake-475-500.00
cam........175.00???????????????????????????

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ttopstang

· #6 · Jul 5, 2009

what is an m303? im assuming you made a typo.

but i agree with justin, great name by the way, you need to do a little more research in the cam department. you will be very satisfied if you pick the right cam and pay a little extra money.

EagleAutosports

· #7 · Jul 5, 2009

Out of that list, go with the Cobra. It'll support a mild 331 and give good everyday driveability.

Never heard of an M303 and I've been doing this since the B303 was brand new. I even remember the B302 cam.

88351stang

· #8 · Jul 5, 2009

GT40 or cobra gets my vote too. Great intake for street cars. I had done some research and found an intake shootout comparison and no other intake matched the GT40 or cobra under 5,500 rpm.

tom.moss1949

· #9 · Jul 6, 2009

The Cobra and Performer are very good - but they would need to be ported to keep up with AFR 165 heads and make similar or more power than the RPMII or Holley under @6,000 rpm or less. For pure torque in the low- mid range they cannot be beat either.

Bullitt95

· #10 · Jul 6, 2009

88351stang said:
I had done some research and found an intake shootout comparison and no other intake matched the GT40 or cobra under 5,500 rpm.

Except for the Edelbrock Performer which all but matches the GT40/Cobra at lower rpm but is superior from about 4000rpm upwards.

tom.moss1949

· #11 · Jul 7, 2009

Bullitt95 said:
Except for the Edelbrock Performer which all but matches the GT40/Cobra at lower rpm but is superior from about 4000rpm upwards.

Not by a wide margin but it does do better. Once both are ported, it still holds a small edge.

Bullitt95

· #12 · Jul 7, 2009

Yeah not a huge margin but still ~3% more HP than a GT40/Cobra at 5500rpm. The only disadvantage of the Edelbrock Performer is that it's much harder to find a used one in ebay and if you do, it's likely to be more expensive than an Explorer. I was very lucky to snag one for $182.

tom.moss1949

· #13 · Jul 7, 2009

Here is an interesting experiment I participated in. Ported a Performer lower for the combo in the graph and both a Performer upper and RPM upper were run on the dyno the same day back-to-back. Through 5,700 rpm, the Performer made more power than the RPM - for THIS combination of parts.

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25thfox

· #14 · Jul 7, 2009

i would go with the performer or the cobra i have the
trick flow and when i installed it i lost all low end torque doesnt make power untill about 3k but it pulls like a train after that.

Diego

· #15 · Jul 7, 2009

I say Trick Flow, like 25thfox it doesnt make make power till about 3000K but the heads will cover the idle power. The intake will take it from there. My vote is Trick Flow

Bullitt95

· #16 · Jul 8, 2009

I recently replaced my mildly ported stock intake with an Edelbrock Performer and gained 15rwhp/7rwtq on the dyno. I was very happy with the result but I was even happier to find that I also gained torque at the bottom end.

tom.moss1949

· #17 · Jul 8, 2009

Bullitt95 said:
I recently replaced my mildly ported stock intake with an Edelbrock Performer and gained 15rwhp/7rwtq on the dyno. I was very happy with the result but I was even happier to find that I also gained torque at the bottom end.

There is why - if it had been a full-on ported stock intake the delta would be much smaller and you would have lost in the low-mid. The Performer is still a good intake and a great step up like the GT40 family for a head that flows 230-250cfm. At 250cfm, they really need to have the lower ported.

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