Intake selection, opinions?

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Postby Sirshredalot » Fri Feb 09, 2007 6:11 pm

Hey.

I know they say not to, but I say who cares.
I ran a single plane intake on a 355 in my 81' C10 pickup and still hauled 1000lbs in the bed with no problems in loss of torque...the rear end had real highway gears, but it is a manual tranny too...but not a granny gear tranny(3+1 overdrive).

I had no problems and really couldnt tell the difference between the performer that I took off in favor of the single-plane.

The single plane was a weiand IMCA low rise intake....similar to a torkerII.
I was very please with the performance....even in the heavy pickup truck.

So from now on...I'll never run a dual plane intake on anything other than a "truck or economy" motor...like a 305 or 265.

The trucks motor had a 3 angle valve job and 1.94/1.50 valves with a cam that boasts .447/.447" lift and 222/222 duration @ .50.

It pulled really hard...even from a rolling start and would fry the tires WITHOUT a clutch dump....this is all with a single pull rearend with 2.65:1 gears.

In my opinion...the perfect intake for the street (especially in a light car like an H-body) is a single plane or a well tuned tunnelram.

Given my motor had no Air Conditioning but did run a power steering pump.
I even managed at one time to knock down 21 MPG on the highway with the single plane and an edelbrock 600....with a complete engine and tranny in the bed (850lbs).

God bless
-Shred
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Postby NixVegaGT » Fri Feb 09, 2007 7:12 pm

Hey Shred,
The experience you've had with the 350 and a single plane are not unusual. The 350 makes more low speed vacuum because of it's short rod ratio so it can send a stronger signal to the carb. I've read a few articles in CarCraft about the dual plane vs. single plane on a 350 and found that it makes better midrange torque than the dual plane defying conventional logic.
- Nic '73 Vega GT "DogBoxx" Batwing LS1
http://www.cardomain.com/ride/2357894
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