any one else have big problems with brakin things in the cvh head , im always brakin rockers in half most of the time its 2 at a time inlet and exhaust , last year broke a colt at 7200 and bent a valve at fastford fight club pulled the tread off 1 of the rocker stud nuts and then pulled the rocker stud out the head, turns out id run a 12.9 on 3.5cyl, and then thurs this week snapped a cap straight in half and bent another valve, is there anythin uprated out there apart from roller rockers that i can use or has any1 else had/ got the same problem and what have u done