[bvega]

I wouldnt worry about the AFR 185 being too big in valve size. They still have small intake runners. the roush 180cc heads are another but look they are 180 cc. It is not just about the size of runner and valves as described in the MM and FF article about cylinder head shootout. It is also about compression ratio and overall flow characteristics. the AFR heads are not peak power oriented only they make they most average hp. They make it possible to have your cake and eat it too. You can always make up for the lost torque down low with your somewhate small carb and a custom cam that will take your CID into account.

Whats nice about going 185cc heads now is that you can easily use them on your 331 or 347 stroker and then just change your cam and intake and carb. That move can save you over a $1K farther down the line.