I followed tdubskid video on valve adjustment..but it didn't end well. First problem I had when adjusting the intake. I tried tightening it back up, my torque was set correctly but it stripped the tippet, just deformed the threads. I was able to get a new one and replace it. I had it adjusted .003 intake, .005 exhaust. Started it up, idle fine, reved it up fine, put it in first (I have a tach) and ran fine all the way up to 6k rpm. Shifted to second and all of sudden at 3500RPM or so it sputters and won't rev any higher. In neutral it will rev up but in second it sputters any ideas?