gearhead fam...im new to this tuning stuff. i got a 5.3 4l60e from a 2002 tahoe that i swapped in a 78 Regal. i paid someone to send me a pcm with vats deleted, rear o2 sensors deleted, tire size, gear size, and electric fans on. everything worked what they sent but from what people telling me, its just a base tune. nothing else is adjusted. what all do i have to do to get some power out my setup?