FI fuel upgrade options

Jinxx

After running car on the Dyno it seems to be losing fuel pressure in the upper rpms...I have talked to several reputable tuners I got some mixed answers ....some say I can tune it richer ...some say use larger injectors ...some recommended the return system .....now I would assume the return system would be the best route to take .

Some of my questions are... If I'm losing fuel pressure could I use a larger fuel pump to maintain the pressure ...I'm assuming there is a reason for this not to be a options....also ...im not sure if tunning is a option with pressure dropping how far has others run 650cc injectors on a return less setup

And my last question would be if I upgrade to the return system will it maintain the same fuel pressure as before with just the ability to hold the pressure in the upper end or will the lower rpm pressure be higher with return system .

I feel like I'm on the borderline of having to upgrade and just looking at all options that would fit best. Boost is at 12lbs and I dont want to try to increase any further ..just want to make a safe afr all the way through the the rpm range.

Attached Images

image.jpg (287.1 KB, 66 views)