I have a 07 ss 2.4 na, dyno at 210hp, 12.5:1 compression, built bottom end with domed pistons, built head, ported and milled, comp cams, it's a dirt racer, I have some of the bolt on goodies like header cold air intake, except I still run stock injectors stock fuel rail, stock plug wires, stock ignition, stock 2.4 intake manifold, stock throttle body, ..
My question is, would changing any of those I mentioned get me more power? more torque? quicker? faster? or should I just leave it as is? Always trying to go faster..thank you

 

Step colder plugs would help your stock coil packs should be fine as your not pushing major power. Slighty larger injectors would help you can get those at zzp and possibly lsj throttle body. The only way you will get more serious power is unless you go boost.

 

ok, what size injectors? cant boost in these race cars gotta be NA, what throttle body? need sizes or specifics, and I love zzp parts..thx fir the help

 

You need atleast 33 pound injectors and for you to be able to use a lsj throttle body you need the le5 adapter plate first so that way the lsj throttle body will bolt onto your le5 intake manifold. Here are all the links for the parts you would need. You also realize you need a tune for all this as your engine will not run right with out one.

https://zzperformance.com/collection...ed-main-widget
https://zzperformance.com/collection...-adapter-plate

https://zzperformance.com/collection...ed-main-widget