[rblong]

Well it has been a while and I really can't find out why the motor is flattening out on HP so early. I have changed the side pipes to 2 inch collectors, 4 inch pipes with 4 inch turn downs. I have removable baffles and have run the car with and without the baffles (deafening without the baffles). Timing is 16 to 30, jetted up the carb. Pulls like a freight train through 4000, then just kind of levels off. No miss, no nothin. It will go on up to 5000 or so, but just isn't pulling hard from 4000 to 5000. I haven't had it dynoed again, but really don't think much has changed from before. I am not hitting the rev limiter. I have the stock rockers, could I be getting some floating - how could I tell? Car is still a blast to drive, but you know how it is - first few thousand miles you think this is as fast as I will ever need, then you get used to it and start to look for more HP. Could it be the cam, unfortunately I don't know what grind it is.

Thanks,
Bruce