hi, wich company or who makes the better custom cams? i have 347 with AFR 185's, 10.5:1, performer RPM intake, 30 pound injectors, 70mm TB, 1 3/4 LT's headers, 3.90 gears, T5, i whant to spin arround 6500 RPM's and leave my A/C and all powers working what is the best cam can i use making power and leaving all my acc's