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Old 12-05-2012, 11:08 PM
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If you want to try the smaller thumpr cam for grins in that motor, with the stall and gears, degree it and move to a 100° intake C/L
.050" timing check points (checked using a solid lifter) 13.5 -- 33.5(intake closing point) 54.5 --6.5ex

227 241 @.050" 107° lSA 100° in 114°ex installed C/L's

Lock out the distributor mech adv system (full locked 34 to 36deg timing).
You can retain and use the vac advance (ported)
use a 4.5' power valve or 4" step up spring (eddy)

5.13++ gears. 3000+stall

Last edited by F-BIRD'88; 12-05-2012 at 11:13 PM.
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