Adjustable fuel regulator.

[Stang87]

When using a 190 lph fuel pump do you NEED an adjustable regulator? thanks.

[Eyelawdoc]

No, you don't need to use an adjustable FRP. The stock FPR works just fine with the 190 lph pump.

[SVOeric]

you don't need a adjustable regulator for any pump, 190 lph, 255 LPH even 500 lph --

the stock regulator just passes the extra fuel right back to the tank, and keeps the amount of fuel the injectors see at the same rate.

Where you would want a adjustable regulator is when you have made modifications, and you want to push more fuel into the the engine --