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CAMS

Old Jan 30, 2026 | 08:14 AM
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Default CAMS

Can a combo of cams work, say PB+ for exhaust or intake and standard P's for the opposite.
 
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Old Jan 30, 2026 | 08:28 AM
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Anything can work if you are smart enough to figure out duration and clearances so you don't smack a piston with a valve. Real rocket science stuff, you need to talk to someone that does custom grinds for cams, good luck.
 
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Old Jan 30, 2026 | 10:50 AM
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Thanks, I was just wondering if were an old ironhead trick.
 
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Old Jan 30, 2026 | 01:03 PM
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Certainly it will Work, if Clearances are Checked ..as Architect says..
I can tell you that My Bone Stock Ironhead was Good for 12.9 at at 101MPH in the Quarter...Using good ole P Cams...


 

Last edited by Racepres; Jan 30, 2026 at 01:04 PM.
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Old Jan 31, 2026 | 09:22 AM
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For automotive cams, increased exhaust duration was a crutch for poor exhaust ports. Not a problem that needs to be solved here.
 
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Old Feb 2, 2026 | 07:15 AM
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Originally Posted by Joe12RK
For automotive cams, increased exhaust duration was a crutch for poor exhaust ports. Not a problem that needs to be solved here.
But.. Harleys, have notoriously Poor Port design and Flow characteristics.
You just explained Why, the AB cam can wake Up a Shovelhead...Mine anyway!
 
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