All my engines have been stock bottom ends so I don't spin them past 6000 to 6500rpm. The turbo engine is still making power at that RPM so it is very tempting to go higher but I never do. Magnum engines when ever released in Australia so if I damaged one I have to ship another one from the states. With the rods the car sees over 400hp on the street fairly regularly. However because of tyres the car only really sees 650 at the drags about 8 to 10 times a year and then it's only for about 10 seconds at a time.
