bigger injectors plus tune
 

if i was to get bigger injectors like 24lbs and a chip tuned for them would i expcet bigger gains then just a chip with stock injectors?

If your car is lightly modified you will not get any gains from larger injecters.A tune will unlock power though.

^I agree, with mild mods like you have, a tune would make a difference, injectors would likely make no difference at all.

I think 19 pounders are good to around 260-270 HP(Flywheel). But as for a custom tune only good can come out of it. Not sure of your mods but anymore 260HP i'd switch to 24's. IMO