Another Blueprint Engine Delay
This info likely won't be divulged! BUT, if this gives a clue, the flat tappet cam cores are not formed well. The parting graft from the mold actually affects the "rate of lift" when cycling the cam during the degreeing process. This issue is not on all the lobes, luckly was on the one I chose to do the degreeing from. The lifter follows the lobe edge, due to the built in lobe taper, as it rises and then follows the flaw, the lift rate actually backs off and then rises again, see pic. Cam # 20-212-2 .
