Ben Baltrusaitis wrote:

Paul,
I've been reading your comments on the peripheral port and your slide throttle idea. You have me thinking of how I can apply your excellent ideas to my engine.
I have a 20B that will be turbo charged. I need 325hp, but it will not hurt to have more. When you suggest peripheral ports, do you advocate them in place of the side ports or in addition to? If I
can get by with just peripheral ports, it would seem the intake manifold would be much simpler and your slide throttle even better.
Thanks!
Ben

Not worth it if you are turbo charging. You will easily get 325 HP or much more 
with stock side ports and a turbo. Depending solely on the amount of boost.

The advantage of the turbo is mostly at high altitude (12K to 18K) where you 
can still get all the power while the aerodynamic drag is much lower.

Now for NA use 2 inch P-ports, a slide throttle and 15 inch runners and 
you should see at least 360 HP at 7500 RPM. Probably a bit more.

Paul Lamar
 
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