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Old 11-20-2003, 04:07 AM
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performer rpm or performer??

hi there, I need help again,I am swapping out my single plane intake for a dual plane.
the performer rpm was highly recommended by the experts(you)
but it will not fit under the hood of the vette (350 sbc/aprox 300 hp.) my question is , Is there much performance diffrence between the two??or am i better off looking for a diffrent one?
I can buy a new regular performer for $198. canadian , thats about $150. american.Is this a good price??
does anyone have any info on other intakes that will fit and give me the low end torque i need??
any and all imput will be greatly appreciated.mike
p.s. anyone interested in a brand new weiand excellerator single plane??ugh, i hate being a rookie.

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Old 11-20-2003, 04:14 AM
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the performer would work just fine for a mild small block like your running. as would Holley`s Contender, and Weiand`s action plus.
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Old 11-20-2003, 04:16 AM
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The Edelbrock Performer intake is OK but not much increase (if any) over the stock Chevy intake. You should be able to purchase one new for closer to $110 in US funds. Check eBay out as there are usually many to choose from there.

Too bad the Performer RPM won't fit under the hood. You would notice a significant increase in performance with it.
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Old 11-20-2003, 07:02 AM
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Cut the hood!
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Old 11-20-2003, 08:17 AM
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well the hood is already cut, but i was wanting to put a new one on,I wonder if it would fit under the big block hood??they're the same price.i'm afraid that if i put a scoop on it ,it may be hard to see or worse it may look trashy. mike
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Old 11-20-2003, 10:08 AM
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The performer drops off aroung 5500 rpm. The weiand stealth is shorter than the performer rpm (3/4 inch, i believe) and its powerband goes to around 6800. This would be my second choice after a performer rpm unless your setup don't go past 5000 rpm.
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Old 11-20-2003, 02:18 PM
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I run a 355, 11:1 pistons, LT1 cam, 492 heads, headers, 750 Holley vacum and an old Edelbrock C4 intake. Now according to Edelbrock itīs not such a bad intake; even better performance tha Edelbrock Performer.
How much taller is the RPM?
Would I gain significantly with a RPM? I shift at 6000 when itīs serious.
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Old 11-20-2003, 05:11 PM
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Ya I agree with frisco from all the comparisons I've seen you can almost nothing from going from the performer from the stock intake.
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Old 11-20-2003, 09:03 PM
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I do not have any experience with Corvettes but here is what I would do.

If the Weiand Stealth is shorter than the Performer RPM I would go that rout.It is a known as a good intake and is also in the same class as the RPM,Street Dominator,Sportsman II.

The shortest air filter assembly that I have found is a GM unit that they made in the late 60's and 70's.It came stock on some Corvettes so you know it is low.
I have had the K&N dropped base,Edelbrock dropped base,Moroso dropped base,and the Erson dropped base air filter assembly's.The GM unit allowed the bottom of the air filter to drop the farthest down tward the intake.

It is sold at Ricks First Generation.You can get it as a complete assembly PT#EP-116, or you can get just the dropped base PT#EP-102.
http://www.rickscamaros.com/cgi-loca...45c+1064422212

I would just get the GM dropped base at Ricks, then get a K&N XStream filter top, then get a K&N 3inch filter.
I would also get the BB hood for more clearance and brute looks.

You should try asking the clearence question over at Chevy talk under their Corvette Forum
http://www.chevytalk.org/threads/ubbthreads.php

Last edited by thrasher; 11-22-2003 at 03:36 AM.
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Old 11-21-2003, 12:00 AM
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Get an RPM Air gap or at least the RPM. There is no sense in buying a Performer. They have the same bottom end as the RPM only less top end.
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Old 11-21-2003, 01:06 AM
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Hey Mike! Just how close is the fit? You might be able to use the RPM with a low profile air cleaner like the Holley Hi-Tek #HLY-64280
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Old 11-21-2003, 01:52 AM
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The Holley 64280 is restrictive and should only be used if power is not of importance.
http://www.jegs.com/cgi-bin/ncommerc...13&prmenbr=361

It's street rod stuff man.Just like B&M
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2443385930
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Old 11-21-2003, 02:23 AM
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It's funny how they never advertise items like that as restrictive! I have never used one but I can see that they could less than adequate! After rereading thrashers first post though, I do agree with him. The Weind X-celerator is a good single plane (I have one on my 383sbc) and a drop base air cleaner with a K+N Xstream top would be the way to go. Is the RPM intake taller than the Xcelerator? I had some clearance problems with mine on a 89' firebird! I had to use a deep drop base with a 2.5in filter. I do know it is restrictive!
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Old 11-21-2003, 03:48 AM
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I have the weiand excellerator on it now with a drop base and a k&n filter, I still have about an inch.will this intake be o.k. or should i go with the dual plane (i have not tried it yet.)
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Old 11-21-2003, 12:00 PM
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You would probably gain alittle lowend torque by switching but not enough to justify buying a new intake! I am not sure but I think the X-celerator is as tall or taller than the RPM? Take a look at the RPM out of the box somewhere and get some measurements! If you have an inch of clearance now and still want to change to the RPM, I would think it will work!
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