Can you refresh me on your cam specs? I would still be aiming for factory myself, get as much lift as possible, while still having clearance when hot. You can only adjust so close to your target with the shims anyway.
Stage 2 – The #2251-2IN and #2252-2E are designed to be used as a set. These cams will provide improved full throttle torque and horsepower at all RPM 4000 and up. Uses stock DRZ400 valve springs, if installed in LTZ400 you must install DRZ400 valve springs.
Lift (mm): 9.07 exhaust Duration (degrees at 1mm): 238 exhaust
When I rebuilt my engine over the summer, I did a CP BBK and I already had the DRZe springs and went back to stock cams. My top end is a little noisy. I set the valves around the middle of recommend specs and it did quite it down some, but I just go with it thinking its just where the valves are stiffer. Runs great.
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