360 .03 over with ported W2 heads

Sorry, posted on my phone and half of what i typed didnt show up!
Fresh 30 over 360 block with ported W2 heads. I have flat top pistons now and need more compression. They are .005 in the hole. The W2 heads are 73 CC. I want a hot street motor on pump gas. I dont have a cam or lifters. I do have all the stuff to run the W2 heads but pushrods. Strip dominator intake and TTI step W2 headers. 4 speed and 355 or 373 gears. From the other post i gather I either need different heads or differnt pistons. What piston would be recomended?