Time is one part of the equation you can obviously fill, I hope you can fill the other side of the equation with knowledge and experience. Just make sure when the weather clears, the snow melts,the warm sun comes out and you're ready to rip across those waters, your boat is not tied up to the dock or on the trailer with poorly performing or broken engine!
Have fun, best of luck on your project!

Best Regards,
Ray @ Raylar

If no used set shows up anywhere in the next 2 weeks im thinking the afr 357cnc'd may be my pick.

I have been using the afr cnc heads for years on our engines work great,we use the 335cnc on 598 with hydraulic roller cam 9.5 compression right around 780hp 5600 installing a set in a 42 sonic as we speak

MDGperformance have you tried running anything bigger than 335's on the dyno?