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  #1 (permalink)  
Old 10-17-2004, 10:20 PM
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is the L79 a good cam

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Last edited by spinn; 10-21-2004 at 10:18 AM.
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Old 10-17-2004, 10:23 PM
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Ummmm..... what?
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Old 10-17-2004, 10:27 PM
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ya i know, weak thread. stay with me.to achive a mellow balanced sound what max lift,and duration should i stay under

this could be a stock HP grind . i heard a simmilar note from many GM from 60's.
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Old 10-17-2004, 10:46 PM
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Simply figure out the year of the car, make, and model. Then look up the options for that year......simple.
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Old 10-17-2004, 10:52 PM
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Duntov 30/30 or 370hp LT1 350 cam. Those were pretty nifty sounding factory grinds.

Larry
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Old 10-17-2004, 10:57 PM
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Last edited by spinn; 10-21-2004 at 10:18 AM.
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Old 10-18-2004, 12:27 AM
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no don't use old school cams. Not worth the money, cam technology of 20 or 30 years ago compaired with today's is like night and day.

K
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Old 10-18-2004, 12:32 AM
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Killer is right about that.

Don't buy a cma for the sound. Buy it for the application. Or, build a round the lumpy cam. Either way, make sure the engine gets what it needs to operate in its powerband, or you will end up with a dog.
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Old 10-18-2004, 01:01 AM
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Ya know,if you focus on the intake side to keep your power where you want it,speaking of duration, and increase the exhaust duration a bunch,you get a nice boomy sound without it choking out and shaking the rig,cubes make a difference on the way it sounds and runs a lot,but as an example a lot of older guys Ive built stuff for that aren't looking to race,a couple of cams Ive used that they really boast about are the summit 214/224 and the 224/234 depending on what they're after.
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Old 10-18-2004, 08:02 AM
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Last edited by spinn; 10-21-2004 at 10:19 AM.
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Old 10-18-2004, 12:34 PM
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I don't know what cubes you have,or what heads,but the older sb heads without rotators take the sum-k1103 no prob,and then some,in a 350 the 1103 sounds just a hair over stock but you can still hear it has a cam at an idle,and it works real nice with the stock converter,its right at that edge,and it still keeps good vacuum. That other one may sound stock,in fact,there are a lot of stock cams bigger than that. Just a heads up from a guy whos used em quite a few times. Maybe that other one is what your after?
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Old 10-18-2004, 04:26 PM
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rifraf, would the summit 1103 cam be too much for a 307 that's had the usual breathing mods done and with a stock converter? I'm toying with a similar cam from speed pro or whatever they call themselves. I'm also going to get the EPS manifold, does anyone know anything useful about it? I'm choosing it over the performer manifold as I'm using a square bore vacuum secondary Holley.
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Old 10-18-2004, 05:03 PM
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My friend put that cam in a 70 gmc 307 truck,he loves it, I noticed a slight lag right off take off though,but it was very minor. How heavy you are and how low your gears are will dictate how long the lag is,his truck is heavy and had pretty high gears so that would be a worst case scenario,it realy did run nice though,a very small stall would have made it perfect.
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Old 10-18-2004, 05:59 PM
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Last edited by spinn; 10-21-2004 at 10:19 AM.
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Old 10-19-2004, 05:11 AM
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Thanks fellas, good useful info there. The motor's in a 1971 HG Holden (GM) pick up that weighs probably the same, if not less than a 68 Camaro. It's appearance is not unlike your El Camino's, but again, probably the same dimensions as a 68 Camaro. It's rear end gearing is on the low side for such a torquey v8 to the point where I never give it full gas on take off. I'd say the gearing's around 3.55 or so. Yeah, the EPS manifold also means no adapter for my square bore Holley, which is a good thing seeing hood clearance is tight. Thanks. I love my 307 (bored out close to 327 cubes) and just about anything American, Fords included!
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