1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Useless to get power out of a 12a?

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Old Jul 7, 2003 | 02:48 PM
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From: Demotte, IN
Useless to get power out of a 12a?

I have a 12a with a holley 600 carb on it and i was wondering if it would be useless to try and get more power out of it or just save my money and get anoter engine? it is a new engine but.................i was just wondering if it still has alot of potential.
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Old Jul 7, 2003 | 02:55 PM
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oh yea

oh yea it is street ported from atkins rotary
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Old Jul 7, 2003 | 03:15 PM
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Yea get a full exhaust system.

RB sells them. Is around 650 USD
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Old Jul 7, 2003 | 03:30 PM
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Save some money with the exhaust. Buy the header for about $140.00. Make th flange for about $15.00 and buy some piping for $45.00 and a good set of mufflers ($100.00). Shop can bend and install them for about $150.00 unless you just want to buy the RB bend pieces. $500.00 total. Install yourself, $350-$400. The better it breaths the better it runs. Stock exhaust is very restrictive. I don't have smog laws so all of the somg pump and stuff came off. Set it up with a dual exhaust system. Keep the pipes seperate from the flange, the most less restrictive way.
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Old Jul 7, 2003 | 03:31 PM
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it has 3 1/5 from the passenger seat back. would i have to buy the whole kit?
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Old Jul 7, 2003 | 03:33 PM
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3 1/2 is nice and large for running the pipes into one pipe. RB sells a connecting pipe from the headers to a single pipe. I'm not using any the presilencers or any of that.
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Old Jul 7, 2003 | 03:35 PM
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Old Jul 7, 2003 | 03:35 PM
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Old Jul 7, 2003 | 03:37 PM
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Sorry, don't know what happened there
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Old Jul 7, 2003 | 03:51 PM
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no smog equiptment except the cats which have to come out so i am prob just going to put some new pipe in there. so exhaust and headers. hmmm i am gonna start working on that.
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Old Jul 7, 2003 | 07:30 PM
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you could even make your own straight pipe headers, just copy stock many flange
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Old Jul 7, 2003 | 07:32 PM
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many= mani = manifold
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