OK, now you have options…
RHS makes a 200cc head with a 50cc chamber and they flow like crazy.
Link to App Chart…
http://www.racingheadservice.com/Information/Technical/Heads/SmallBlockChevy-Heads.asp#appChart
Look like they run about $620 each/assembled (set up for hydraulic roller cam) or $360 each/bare…
:bigthumb: :bigthumb: :bigthumb: