Fw: [DeTomaso] Intake Manifolds

[Daniel C Jones]

> I contacted Jon at CHI and he told me there was no need to match port.
> Kaase got lower #'s after he matched them while testing.
> I forwarded the info to my builder and he still said it was BS. I find
> it hard to beleive myself, but that's what CHI said.
> Dan, your comments?

Kaase never mentioned it.  I only had the intake, not the heads.
I was test fitting them to a 4V head.  There have been some tests
that have shown little or no gain by port matching but I guess it
depends how far it's off.  Ideally, on a wet flow intake, you want
a constant (small in the region of 1.5 to 3 degrees) taper angle
from the plenum to the head, without any abrupt area changes.

FWIW, there have been a couple of drag racers who have
struggled to go any faster with the CHI heads versus mildly ported
iron 4V heads and Strip Dominator intake.

Dan Jones