When the car is first warmed up (needle at normal temp) the motor works fine.. vtec at 5k rpm, 8200 rpm rev limit. After driving for a bit longer after the motor gets much warmer (driving on the freeway for 15 mins) the engine won't rev past 6000 rpm but vtec still works at 5000 rpm and the motor works fine below 6k rpm. I'm not throwing any codes. My setup is a obd0/pr3 ecu b16a with boltons and buddy club spec III+ cams + gears + rocket motorsports valvetrain. I'm stumped .. Any ideas? Thanks!