to those of you talking about engines and their safe reve limit, the number of cylinders has little to do with how much they rev. For instance a big displacement 6.6 liter trans am v-8's redline is probally not even 5 grand however a ferrari v-12 3 liter motors have been built to rev well past 8 grand and my 2 stroke 100cc yamaha kart engine gets reved to 15 grand all the time. So the moral of this story is you can build almost any motor to rev high, number of cylinders does not mean different rev limits, and redlines are often times inversly proportional to displacement. Casey [Non-text portions of this message have been removed]