Ok I have 440cc injectors making 426whp. Perfect maps as far as inj duty cycle goes (80%). I have a fuel return system with 255 walbro pump. When I tune for the Meth if is possible to get another 50hp with these injectors??? Upping the fuel pressure some more? And would the methenal act as like more fuel being added??? Hoping someone will chime in so I can pass this info along to a local tuner to make sure he knows everything. The guys a great tuner I just want all the info I can get ya know.

 

Yes the meth will absolutely act like more fuel being add. You can increase the timings after full boost like 3-4 degrees and lean out A/Fs like 0.3-0.4 points. You'll see some good gains but i'm not sure about 50 hp.

 

I just need to invest in some larger injectors...sighs...lol