i want a few suggestions please because i dont know what to do. I would like to upgrade my car with some turbos and staff but i do not know much. for example i would like to start with engine building changing the oem rods with scat ones but i do not know the dimensions. then i would like to change the exhaust valves(8 pcs) with other ones. what should i look what make? i will leave the pistons the same but should i change something else? after building the engine what turbo must i choose? external wastegate? intercooler dimensions? fuel injectors? any help is appreciated!!!!