340 Heads Recommendations- Aluminum vs Cast J

Seems like a good setup already. Is there an issue with the heads? If you want to play then just go straight to the Trickflow. Money ahead in the long run.
Yeah I mean it runs pretty good right now, I plucked the trans to have it gone over and do a new clutch kit. Trying to get it freshened up. Yeah I’m leaning towards Aluminum and just building for future