Question on heads.
 

anyone ever worked with Engine works heads? i am building a 347 stroker(my first build) and I found engine works heads for a pretty good price. Only thing is when i try looking up some info online im only finding HOW engines work stuff. Anyways the heads have closed style 64cc combustion chambers and 170cc intake runners. Any one know the goods and bads of this and can lend a hand let me know. Thanks