<VV> angled exhaust tubes

[Eric Lucas]

Good info here http://americanflat6.com/knoblauchsthoughts.html
 
and Ray Sedman probably will have some hard numbers on this. rsedman at sbcglobal.net

http://www.american-pi.com/corvair/html/contact.html
 
> Any body know at what rpm level angled exhaust tubes begin to make a
> difference? Low exhaust pressure is always good, but would it make a
> perceptible difference on the street?