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Old 07-02-2004, 12:43 AM
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300-350 horse 350 on the cheap

I am building up a 350 for a 1st gen Rx7 I currently have
Carter 625
010 2 bolt block in need of honing
882 heads with 3 angle valve grind
Edelbrock Sp 2p manifold

Since the car will weight around 2500 pounds AFTER the swap And it has 3:90 gearing in the rear end I dont need much torque to move this thing I am looking to build more Hp then torque.
I will either be using a T-56 or a turbo 350 in it Most likely the turbo 350 because I already have one is excellent shape and a t56 isnt cheap.
I plan on selling or swapping the Sp p2 + cash for a Performer or Performer Rpm
I havent Decided on a cam yet But I want power mid/top without going to a Hi Stall converter.
Flat tops will be going in as well what else can I do to this motor to build power that isnt going to cost me a arm and a leg? keep in mind This is also My day driver so it needs to be pretty streetable.

Bryce

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Old 07-02-2004, 07:52 AM
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a Comp XE268H would be perfect for what you want. Go with the Performer RPM.
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Old 07-02-2004, 01:30 PM
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The first thing you want to do is take that SP 2P and go to your nearest recycling center. Those manifolds made less power all around than the worst cast iron stock manifolds. They were a huge mistake by Edelbrock.

Get an RPM Air Gap. They make the most power of any comparable manifold. They make a noticeable difference over their Performer RPM counterparts.

Put your money into some good cylinder heads. The heads are where the real power is made. Other than nitrous, dollar for dollar a good set of heads is your best bet.
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Old 07-02-2004, 10:47 PM
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I would like to get a air gap manifold and new heads but I dont have the cash to do that.
I will most likely run the 882's ported with the 3 angle valve grind.
I will see if i can get a performer Rpm but If I find a used performer for 30 bucks I am going to buy it.

Is it worth getting hyper pistons over regular cast pistons? its only 30 bucks more

How much power will I gain by running long tube headers vs shortys?

Edit: I cant run a air gap manifold either because it will be too tall for the hood.

What about weiland stealth 2 manifolds?
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Old 07-04-2004, 01:01 AM
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Kinda hard to say about the headers. Some might not experience much different but i'd say 5-10 ponies. Just make sure you have the ground clearance.
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Old 07-04-2004, 09:13 AM
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I remember reading that shorty headers will make more (average) power over the operating range (on a mild street motor) than long tubes. The long tubes will have a higher peak hp but give up power lower in the rpm band. I don't think it was a large difference either way - IMO just get what will be easiest to work with.
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