Indy probably isn't chiming in due to he can't stop laughing about the tight valves = more power comment. Cam profiles are where the power is made not in the lift number. Larger cams with the correct profile can make more power in the RPM range they were designed for, but with the stock cam a valve set in the middle to looser end of the range will hold the compression just a fraction of a second longer producing a more powerful compression stroke and the side benefit is that it gives the valve more time to cool against the seat. This all happens in milliseconds but the cooling of the valve head helps stop it from sinking into the seat due to being overheated , which causes the valve clearance to TIGHTEN and loose power, but this will be called stupid by Wasabi in his next post. WR Dave:busted:
No, not stupid at all.
Yes, you can move the power around with your clearance settings. The looser they are to more bottom end (torque) you will have, due to the longer the valves are shut (shortening the profile). If you want more power, set to the tighter end of spec (valve open longer like a more aggressive profile aka. hotcams). You only loose power if the valves stay open during compression (0 lash).
Seems like a hard concept for you guys to understand for some reason.