ok guys i wanna pick ur brains..... got a 92 Civic DX B7 block/Y8 head problem is it redlines at 5k....runs fine until it hits that 5 then its like it hits a rev limiter. have the p28 ecu in it. running an AEM adj cam gear. i drive it back and forth to work just about everyday and have no problems with it, i just find that 5k rev limiter a little suspicious. what could it be? its not the ecu, already tried swapping those...didnt work. possibly timing issue??