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Old 07-15-2003, 09:20 AM
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Hollywooding Hollywooding is offline
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So from what you said..

Given a street motor that will be used at the track, such as the 4.3l v6 in my tracker,

running a roller cam is good for wear and tear, great for lobe profile, but needs a stiffer valve spring to maintain high RPM.
Using a Roller Rocker is usually a good bet for durability and rpm.

So overall if i use a roller cam, the card will tell me the rocker arm ratios, duration and spring tension to reach maximum rpm of that cam before valve float or Redline.

I guess I should phone the cam manufacturer for details.
Thanks for the help johnsongrass1 'preciate it.

Hollywooding :cool:
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