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post #11 of 26 (permalink) Old 10-29-05, 08:51 PM Thread Starter
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Re: Stock 351w Buildup Advise

If the RPM cam isn't that impressive, what cam is? What lift and duration numbers should I choose? (I still kind of confused on what they mean, also) Thanks for the info, soon I will hit the junkyards in the area and see what I can find!

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post #12 of 26 (permalink) Old 10-29-05, 08:58 PM
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Re: Stock 351w Buildup Advise

The Edelbrock RPM cam is fantastic if you run it with the RPM equipment- I've seen dyno charts to prove it. They design all their stuff to work together, so if you mix the RPM cam with other parts that don't flow enough or flow too much, it's all going to be out of whack.

I'd say check on CompCams and Crane Cams. If you're only looking for a little extra boost, though, I have a friend running Summit's brand cam/lifter kit in his 351W and he loves it.
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post #13 of 26 (permalink) Old 10-31-05, 05:43 PM Thread Starter
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Re: Stock 351w Buildup Advise

I just got back from a swap meet where I bought a Edelbrock Preformer Intake. Now I am trying to decide on a carb. I think I'll stick with Edelbrock Preformer, but I'm confused on the size (cfm). I was thinking 600 or 750, but I heard 750 was too big and will waste gas. Will 600 breathe enough for the Preformer intake to achieve around 400+ hp?
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post #14 of 26 (permalink) Old 10-31-05, 06:29 PM
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Re: Stock 351w Buildup Advise

I have a friend running a Performer 600 on a 350hp Chevrolet 350 and he says it's more than enough, so I'd say you should be able to get what you need out of that one. Did you get the 1405 or the 1406? I think you'd be better off with the 1405- I hope that was your purchase.
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post #15 of 26 (permalink) Old 10-31-05, 06:45 PM Thread Starter
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Re: Stock 351w Buildup Advise

I believe it's the EDL-2181, that's what's printed on the box and the bottom of the manifold. It's just the Performer, not Performer RPM. What are the 1405 or 1406?
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post #16 of 26 (permalink) Old 10-31-05, 07:39 PM Thread Starter
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Re: Stock 351w Buildup Advise

Also, If I use a RPM cam with the regular Performer intake, will it work, or just mess stuff up? If yes, what can I do to improve the flow of the intake?
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post #17 of 26 (permalink) Old 11-01-05, 12:50 PM
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Re: Stock 351w Buildup Advise

I'd say just run the Performer cam- mixing and matching isn't a good idea (they design their parts to work together for a reason). There's not enough difference between the Performer and RPM cam to risk improper part matching, in my opinion. If you end up getting the Performer heads to match, you'll be rolling hardcore.
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post #18 of 26 (permalink) Old 11-01-05, 04:35 PM Thread Starter
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Re: Stock 351w Buildup Advise

If I do decide to go with the RPM package, will I notice the difference in performance hp and tq, or should I just go with the regular performer package? I plan on making a quick weekend street/strip car. Will the idle to 5500 be enough? (I'm thinking not)
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post #19 of 26 (permalink) Old 11-01-05, 09:40 PM
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Re: Stock 351w Buildup Advise

Most automatic transmissions never even reach 6,000 RPM without modifications, so idle to 5,500 rpm is plenty. I think you'd do fine with the Performer package, but if you're always going to be asking yourself, "What if..." then you need to go with the RPM. In that case, go ahead with the RPM cam and upgrade the manifold and everything else as soon as you can. Somewhere on Edelbrock's site you can download an Adobe file that shows HP results with their full packages. Pretty impressive, if you ask me.
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post #20 of 26 (permalink) Old 11-02-05, 01:54 AM
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Re: Stock 351w Buildup Advise

A 351w will make 400hp around the 6000rpm mark,the performer isn't your best choice . For a weekend street / strip car why would you need a manifold that works great at idle?
Heres an example
351w + .030
10.5:1 comp.
750 cfm demon carb
performer rpm dual plane manifold
stock gt40p's
comp cams extreme energy 282
1-5/8 headers
rpm Hp Torque
3000 - 206 - 352
3500 - 248 - 372
4000 - 295 - 387
4500 - 337 - 393
5000 - 373 - 392
5500 - 395 - 377
6000 - 399 - 349
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