People are getting good #s out of the Andrews 57s, if you add a 4* cam gear they have nearly the same specs as the 204s, except with the .560 lift the late model motors can use as a bolt in.

 

Not sure you even need the cam gear.

 

I agree that it's not really needed, I've seen the 57s make right at 100 hp & almost 110 tq with a good tune for a stage 2 build, just a good exhaust & A/C bolt-in. Just would be interested to see what they would do with the 4* gear, that would give them the same intake close of 34 that the 204s have, like a 204 on steroids.