318 with 360 heads

If your just searching for more low buck power, the 360 will be the way to go. More torque stock. Those heads will help make easy cheap horse power also.318 being smaller displacement will take more upgrades for same results as 360. Good 2 1/2 in. exhaust,3.55 gears. I would not mill j. heads.Quality rebuild, multi angle valve job. Good luck.