Head advice

Planning on using my tax refund to get some heads for my 360,currently have J's w/1.88/1.6 with no other work than a fresh valve job.Would like sugestions on new heads.My combo is:

30 over w/ KB107s,block not decked
xe274h cam
RPM intake
Holley 670 Street Avenger carb
2800 converter
3:55 gears
Also what thickness gaskets should I use? Been considering EQ or LA-X heads.