Originally Posted By PorkyPig
Originally Posted By pittsburghracer
As I said I've never flow tested a CNC'd head yet that did not go turbulent.

Because its a mass production of a poor design, or because the mass production type of CNC porting leaves a surface finish more likely to have problems that cause that turbulence?


Or because the inlet radius used could be causing it...if a port is turbulent, sometimes flowing with the intake on will help and I've seen this run pretty good in a car.
My old W2 headed 360 was like that. It ran well for what it was.

Brian Hafliger