Even though that 4 stroke is a rotary valve motor, you're still going to fire every revolutionone in the exhaust and the one that countsthe compression stroke. So with respect to the timing, it really doesn't matter, right? What effect would the port timing duration and location have on any timing modification one might contemplate? Isn't the typical 28-32 degs timing more a matter of flame speed and piston speed physics? What are your thoughts on that Adrian?