I want to know what are the best performance parts to buy first to apply on to a completely stock z28 the car is a 93. should it be exhaust , cold air , induction , supercharger, manifold or ignition ?
whats the best parts to get to run a low 13 sec thats my goal.

 

cold air, exhaust, headers and tires will run mid-low 13's all day

 

supercharger will blow your engine really quickly due to high compression ratio

and ignition isn't needed untill you get alot of hp

you already listed all you'll need for a consistent car

intake, headers, gears and traction mods

 

LT1's dont like blowers... not stock engine anyway

I suggest you do the standard

cold air intake, headers, catback, torque converter (if applicable), gears, rockers, cam, heads.... yada yada

most guys follow that order or close to anyway, throw tuning in there somewhere

stay away from mass air flow sensors, bigger throttle bodies and hypertech