cam selection

[r15303]

Can someone give me some advise on cams?  I have a 70 chally 440  6 pack and want to put a "stock" cam in it.  It currently has a Comp Cam #21-223-4 and I would like to stay with Comp Cam.  How about a roller cam?  Worth the money?  I want a smooth idle and I'm not planning on any racing.  Any advise appreciated.
Thanks   

[72hemi]

Unless you are racing or spinning high rpms I wouldn't spend the money for the roller. I have a Mopar Purple cam that is supposedly a stock 6 pack replacement from the catalog and the car seems to run well.

[r15303]

Thanks 72 hemi  Does it still have that "throaty" sound at the exhaust?  Is the idle smooth?

[72hemi]

sure does, I don't think it makes a difference but I am running a single four barrel.

[moper]

That XE268 should idle as good as a stock cam in that engine. Is there a reason you want to change it out other than you're bored with it?

[r15303]

No reason other than it's apart and I like a smoother idle - and so does my wife!!

[Chryco Psycho]

try a K56 or K58 Engle better power & idle than the factory cam

[r15303]

Chryco - Why the K56 or K58 and not the K52 or K54?  I'm a     when it comes to cam selection and want to learn about this stuff.   
Thanks

[Chryco Psycho]

check the archives there are 2-3 articles on cam selection & design
 basically you want the get the right duration to put the powerband into the range you want the engine to run best , six pack run great between 1800-6500 rpm assuming you have a 4 spd or stall converter in the 2000 rpm range