If the power curve is to be believed, about the only thing I can think of that would have the motor nosing over like that would be not enough spring load, or pushrods not up to the task.
Do you know what the springs/pressures are?
Pushrods?
I dont know wich pressure they are, what i know is that engine builder is that they are new and shims to get them perfeckt, i was also worried about valvetrain but looks good 240 pounds says the builder
