Batten W2 Alloy Heads

I'd go with the Batten heads if I was building a race only engine as you'll get the most benefit in the upper rpm range. Personally, I don't think they're the best bet for a street-strip car.
I used a set of Batten's W2 econo iron heads on my old 340 Dart build years ago - they flowed great and did sing a pretty song on the top end.
Are you sure they have titanium valves? Or titanium valve retainers?

'Oldmanmopar' - your W2 motor is gorgeous, love the cast valve covers on it.