Need to raise fuel pressure

[Firebb15]

i have a 88 2.8 blazer and im thinking about doing my first 2.8-3.1 swap. Is the fuel pressure regulator on the throttle body? I would like to raise the pressure to accomodate the 3.1, do i need an adjustable regulator? Thanks, Brian

[pontiacdohc@gmail.com]

im not sure but i think u might have to get a bigger fuel pump, and maybe an adjustable fuel pressure reg, but like i said im not sure ive never messed around with TBI

[Superdave]

iirc the fuel pressure is the same for the 2.8 and 3.1.

[geoffinbc]

You may need to adjust it. Good news is it is easy and low cost. Read here http://members.shaw.ca/betterthanyou...to/fpr/fpr.htm