Inliners International Forums General Discussion Hi Performance Flow bench day for the 848 head

With the exhaust valve sitting off to the side at that angle (very restrictive) along with the intake port being limited to about 1 5/8th inch in diameter the port velocities are simply too high to make serious horsepower. I'm not saying we've topped out on making power but we are in the last few percentage points. I am really looking forward to seeing what can be done.