Best heads with Typhoon and b303 W/1.7's ???

Has anyone seen any numbers or anything that I could go by? I'm putting new heads on but Im not sure what to go with? If a different cam would make a big difference with a set of heads then I'll change it but I dont really want to unless like I said its going to make a 20+ hp difference. Driveability doesn't really matter. It doesnt like to be under 2500 rpm's as it is.

Already have typhoon and b303 W/1.7s. Best heads for this???????

Thanks!

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