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Discussion Starter #1
304/308 advertised duration,
266/272 duration @ .050,
653 lift
106 LOBE CENTER
WILL THIS ERSON CAM HAVE A ROUGH IDLE?
 

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86 Posts
I am no expert but I'd guess that it would idle beautifully Set your idle stop at 5000 RPM and it should be fine
 

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I am no expert but I'd guess that it would idle beautifully Set your idle stop at 5000 RPM and it should be fine
 

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The only way that cam wouldn't idle rough would be if it was stuffed in 13 to 1, 557 big block. If it was in a 460 it wouldn't be streetable and in a Windsor or Cleveland small block it's a strictly race only grind that'll probably make under 5 inches of idle vacuum at the very most.
 

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Sure, it'll work fine, Just tie the gas pedal to the floor
, cause you wont be seeing anything under thats near 1000 RPMs
 

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C'mon guys. Mine bigger than that in a 466 & idle's under 1000 in gear. It's gonna be a rumpy one nonetheless. All in the carb.
 

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The cam in my race cleveland is a solid flat tappet with 266 int, 277 exh @ .050, with a 107 LSA, and it idles at 1100 rpm. But it makes ZERO vacuum.

And yes, it is a very lumpy idle.
 

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I was gonna say.........Mine's almost exactly the same specs, (only a little higher lift), and it idles in my 418 ROUGH. Around 1100 rpm. Sounds gnarly as hell, but ROUGH!!! (and for what it's worth, I do belive my Biggs prepared 950 is set up correctly).....................
 
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