225 /6's created equal?

vynn3 said

By whom? The #1 mod I've heard suggested for any SERIOUS slant is major port work done by someone with slant experience.



Cam, headers and 4bbl will have a minimal effect until you do something about the slant's port flow, which was designed for a 170 cube engine.

Click to expand...

Stock 225 Hyperpaks made 196hp with high compression pistons, 4bbl carb and headers. I don't think the head was any different than a 170. A stock 225 from that era was rated at 115? 70% increase in power minimal effect with a 170 head? I wish I could get a 70% increase on my 360 with stock heads.

It appears not ALL heads were created equal either, here is an article from Dutra over at slant six.org
http://slantsix.org/articles/combustion-chamber/sl6-combustion-chamber.htm

The article claims there is hidden performance to be gained by massaging the head, which would apply to almost any engine.