RE: RE: More Power from the 1725

[Jarrid Gross <JGross@econolite.com>]

tom wrote,

>I am referring to the port diameter at the intake manifold not the valve
>size.  I think the valves are the same on the standard and Holbay heads.

>tom

CNA wrote,

>Huh?  That doesn't seem right.  How does the head breath with an intake
>only, what, 1.2"?  I can't recall the stock size, I seem to recall
>about 1.4" for the intake & 1.2" for the exaust.



This is correct, the ports on the holbay are about 1.25.

The valves are 1.30 and 1.52, the same and SV alpines.


Jarrid Gross