Originally Posted by Karack

yes he is right, stock porting the motor will fall on it's face far short of 10k RPMs.

stock internals will have issues revving that high without balancing, lightening and clearancing.

the stock cast flywheel also has a tendency to want to explode at those RPMs so you need a chromoly or aluminum lightweight flywheel.

lastly, you need a reprogrammable engine management system, the stock ECU is not setup to go that high.