408 top end changes, new trick flow heads??

Been having big issues where the car won't rpm past 5800...valvetrain problems, won't get into here since I have another thread going where we've been discussing the issue .... But the car has gone 11.6 N/A @3800ft valvefloating anything above 5800rpm..so short shifting 1 and 2 and before the time you get to the traps , it's like hitting a rev limiter. Lol



Man I had that issue with a factory Mopar ignition box many years ago. Spent a lot of money finding out mother Mopar had rev limiters in some of her boxes. We didn’t have websites like this back then.