Nywhitetransam

Looking for some heads for my ls1. Going for atleast 410whp or more want 450whp well see.. a4 car sadly ik. Going 3.73 gears going with a summit stage 3 pro ls cam. Need some recommendations or someone to sell me or direct me to some heads. Ported or un ported. Not sure what route to go don't rly wanna spend over 1500 ether. Plz and thanks guys!