Something isn't right..

fishmens67 said

We used shims , but it was to reduce preload so it would rev higher.
I was getting 6500 rpm without float before I switched to adjustable and a solid cam. that was a long time ago.

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I was really starting this thread to see if there was anything that I was not thinking about and I've definitely thought about all these different things. (Except pulling the motor for a Dyno session...lol) Now it's a matter if my customer wants to pay for my time and the parts to experiment with all these different ideas..