W2 heads

With so many variants of W2 heads i'm confused as to which ones are good. In the late 70's I used a set of Econo that the part number from Direct Connection ended in 34 and they were good for their time. I was also told there was a batch of cast iron heads of that era that were prone to cracking. Im sure things have progressed with time. What i'm looking for is for a street and bracket race engine, heads like an Econo head, nothing over the top. Are there aluminum variants? Perhaps just go with new Trick Flow? Also decent Intake recommendation.
I'm looking to do up an engine in the 408 range.
Thanks