initial timing

ok.,... 360 eddy heads kb 10.5:1 pistons comp 294s cam 294 duration 525 lift 3000 stall victor intake double pumper carb what is a good initial timing setup for that running 15 degrees right now and runs great is it oing to hurt to take it higher and see how she runs out my total is about 28ish i think at 2500 new to the timing world on hipo engines any ways..give me some tips and ideahs fellas