P Zero

I know. The high ports are still a really nice head. Ive built a couple of cars using these and they were fu..in fast. Those are good heads for someone to just "slap" it together.
Personally,, my next build Im not using any of the commonly used heads - Edelbrock, AFR, TFS, RHS Canfield (not so common)... And I would NEVER run ANY letter cam... they just suck *** crack.

The ones Im going to use require some very special parts and intakes. My secret for now

And The AFR 185's are basically the same as High ports. But the high ports have 192cc runners.

-P.

AdderMk2

high ports are becoming a dated head... sure they are ... decent..

but you can do much better

P Zero

TFS-R FTW!


But seriously, look at flow charts between AFR 185's and the high ports..... the high ports, while being a "dated" head, still outflow them throughout the curve, the AFR start to flow more only .600+
So whats better???

AdderMk2

you are comparing two completely different heads... 185 and 192cc...

RHS 180cc heads outflow AFR 185's...

saying that 192cc heads outflow a 185 is like saying afr 165's outflow E7.... DUH!!!!

but it doesnt have to do with flow at 28 in/hg, it has to do with port cross section, port velocity, fuel mixing.... many other factors

P Zero

Very true......Thats why Im not going to use them. I was thinkin at first of going with the 2.08 canfields.....But then I came to my senses and realized they wouldnt be so good for a mainly street car. Vacuum would be a big issue at low rpm's. Even with my ported GT-40's I have to have my idle at 1000 just so it wont die at lights and what not. And once I hit the brakes, it draws what little vacuum it had and it just dies[:@]. Still lov my carbs though
-P.