Just don't get a Ground Pounder. I finally took mine out and put in a Hal. Took some work getting it to fit but at least I could align my front end with it.
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88 347, Twisted wedge heads,Comp Cams 224/230 cam, 1/4=10.516 @ 126.27, 60' = 1.446
http://xs-fx.com/raughammer/larrysample.htm