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all stock valvetrain, yes changed the springs, now if the cam is larger than the base circle is smaller....is it normal for there to be a little "lash: in there, gets taken up when the engine is started again and the lifters pump up that lil extra???

ALSO i lost one of the stock keepers, cant find it any where...any one got just one?? stick in an envelope and mail to me?? lol boy do i feel dumb



Yeah, ide say the base circle should be that different that it couldn't make up the difference, i had my stock cam re-ground from bullet cams, i'm sure they trimed down the base circle a tad.

Maybe Patrick will have what you need, hopefully he sees this & chims in, or you can PM him, i'm sure he will help you out.

75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU