I know I can go alot more than my goal, but honestly I have seen so many of my buddies and other forum users screw themselves by popping motors and transmissions, that I dont want to deal with that. I will tune it for somehting around 275, then leave some leeway to dial the boost up when I want alittle more. I want to DD it and to have it more than anything be RELIABLE . Ive heard of the d1---> d2 conversions, but I haven't found anything more than rumors/specualtion/"Well someone told me that its not worth it" type things.