what kinda power can a set of 675cc injectors make or a set of 780's ive got the 675 now and my freind is trying to talk me in to a set of 780 thanks guys!

 

675's can make somewhere around 425 WHP at stock fuel pressure no problem. Up the pressure and they can flow more than the typical 750's out there.
I'm assuming your talking about the siemens dekka 675's that Inline Pro etc sell... Very good injectors and can work at high pressures without locking up like the shitty RC 750's.

 

haha sweet man! thanks im keeping them then!

 

Yup I had those injectors they worked well and you could still use your oem gaskets just need to shim the fuel rail. I had 370whp with them but they still had lots of room left for more power...