Devs93
OBS 4 EVA
350 tbi rt now just 3 in exhuast but i need more just dont wanna sink a lot in this motor. If I swap cam am I gonna be stuck running 93 octane? I have a tbi spacer so I was thinking that headers cam and custom chip from tbi chips. i dont wanna get crazy and kill my gas milage with this motor and I wanna go 5.3 or 6.0 later. What cheap mods that work dont really wanna get over 600