Street Ported 13BT w/ FD Rotors, 550cc Primaries, 1600cc Secondaries, Divided Tubular Manifold, Garrett T04Z 1.00A/R, Apexi Power FC, MSD 6A, and 3" Turbo-back exhaust. Is a dual walbro 255 fuel pump setup an over kill for this setup to run 15-20psi? I know the limits of 93 octane is around 15 and higher octane is needed for 18+. I'm just curious if a single Walbro 255 is enough or a dual fuel pump setup is really needed?

 

Over 20psi and over 425 hp you will need two. One is on the edge but your injectors are big enough, just needs a little more FP.

 

Thanks. I am planning to run this dual setup, but the fuel block I'm using is a bit big I think

 

I have this set-up. I am running a GT42R around 18.5 psi

 

Is it on a FC? If so what fuel block and fittings did you use to split the fuel line in tank?