blue_hatch

I just installed it and now my fuel pressure went from 30-32 psi to 40-42 psi. Should I buy a adustable fpr and turn it back down to 30 psi. It was tuned at 30 psi??? Seems logical but just want to double check

tony413

why were you tuning anything on a stock pump and 43-45psi is normal fuel press.

blue_hatch

only running a d16y8, my gauge was reading at 30 psi w/ stock fuel pump.

tony413

which version of the walbro 255 do you have a LP or HP

blue_hatch

i believe the hp

97grnrs

u cant turn fuel down with an adjustable. only up.. u have to drill a hole in the regulator.. http://theoldone.com/articles/regulator/ read this.. it works ive done it

Schister66

i dont understand these Walbro problems...when i put my 255 HP in, i just tossed it in and drove away to the tuner....no need to adjust pressure or anything