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Old 06-21-2023, 10:03 PM
Dragncar Dragncar is offline
Ultimate Warrior
 
Join Date: Mar 2004
Location: Humbolt County California
Posts: 8,356
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Quote:
Originally Posted by steve25 View Post
With the exh to intake ratio of those 197 heads in stock form, if your going to also run headers a would not run a cam like that with its full extra 10 degrees of exh duration .
I would go no more then 4 or 5 larger.
The cam Whitmore spec-ed for my ported 197s was a .270-.275 @.050 cam.