Opinions on heads please?

Yeah, I think the dyno numbers are a little light, mainly because of the 1.5/1.6 rocker bit, The cam will effectively be bigger, in all aspects, with 1.6s. I think overall its a good package, and should top 400hp in the real world. A little cleanup on the heads, and I'd think 425 with no loss of torque should be in range, on pump gas.