Roostertail problem???????????

[Entourage]

I mounted my outboard back on my boat after doing transom, i tested it and had alot of cavitation and roostertail. So i thought it was too high so i lowered it 1 set of holes on the motor, now i got rid of the cavitation but still have rooster tail. I put a flat edge on it in my driveway and the cavitation plate seems to be 1 inch below the keel which i was told would be ok. My boat does not have a bracket, so has anyone ever had this problem? I didn't have any of this before doing the transom and it is driving me crazy. Should i go down another set of holes?