On my car which is all stock internals, just a few bolt ons (i.e. headers, and CAI) whats the optimum size injecto for performance. My stock ones are 235cc... now could i go 300cc? or is that over kill? or even 255cc seeems nice

 

well it's sort of a waste of time if the engine isn't built/tuned to take advantage of the extra fuel.
Just my humble opinion.

 

I'd say you wouldnt have to upgrade until you at least break the 200hp mark...

 

haha alright.. i was just wondering if you think it would make any difference. maybe better throttle response?