If you have the spring loaded tensioners there will definitely be some resistance. I also have a '00 with 570 cams and did the the hydraulic tensioner upgrade and when the cams & cam plate are installed it had slight resistance. My cam lobes didn't hit the case, but you should double check, all installs don't go the same way.

 

Unless I misunderstood...he's talking about an inconsistent resistance

 

Didn't catch that resistance was more pronounced in one spot. Was the cam bearings retaining plate installed?

 

I had to clearance the case on my 03 with a .575 lift cam - then again for .590. - defiantly check the clearance
The problem you are describing sounds like a gear drive too tight - but you are chain drive - so ?? Eastcoast Jim

 

Ok , thanks for your knowledge it is appreciated .
I just wanted to get some more input before I moved on.

 

Go to the search function, at the very top of the page where the down arrow is click on it, click "all", type in Hippo Build.
All the information you will ever need to build a 95" .570 cam motor.

 

Will do. Thanks