Which heads are best

Well J par, I think a serious answer from all that reply along with being honest and hopefully a been there and done that truthful reply would allways be the result of someone asking a question.
But bench racing, theory and some of the famous, my friends third wives ex-botfiends dog once.....
IMO, it's all good.

But YES! I meant and surley mean racing on a serious level. Really looking to ether/or/and pound down some power, race for points/money, just simply get'er done. An honest attempt to paste the competition. Or your friend/enemy. Low street useage if even at all.

I have managed some decently power engines with left over/junk yard/swap meet/extra chit laying around. And it was great for what it was. It's not like it was a horrible thing. A lot of fun is what it was as well as a bit of learning a long time ago. My favorite thing to do before computers was just to simply swap parts around and see how it acted. This is how you end up with 20+ carbs, 10+ intakes, 6-7-8 sets of heads in various states of OE to big valved and ported. Etc..... on down the whole car, in and out. And yes, dispite the net and who seys what, I look foward to doing it again right soon!
Why, because it is fun and you learn first hand.