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Old 12-06-2009, 01:42 PM
  #44  
DRTRCR22
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Join Date: Nov 2009
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Zip, here are the specs for this cam from JR Motorsports.com:
(NOTE: the book shows slightly different numbers, they upgraded the specs since last printing) I've heard several times that circle track cams make excellent drag cams due to massive toque from the bottom end up thru the lights.

JR109H (the H for hardened) 260/270/106+4 from Custom Cams Inc.

Recommended range = 3200 rpm thru 7200 rpm

Duration @ .050 = I 260, E 270

Lift w/ 1.5 rockers = I .561, E .578

Lobe lift = I .343, E .385

Lobe speration 106*

Lash (hot) = I .020, E .022

Standard SBC firing order

The cam costs $200, and the Crower lifters with oiling hole in face (EDM)are $164

This sounds like a cam kit that may work for your application when time to change it out again...?

Jim
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