Is anyone running one of these? It would
seem a quick way (rather than chip shipping)
to adjust for the cold weather, and racing.

Someone said the stock one was a "4" and
if you need more you could go to a "5" or a
variable one.

Any thoughts?

TIA

Cliff

 

ttt

 

I have a adjustable fuel pressure regulator on my truck. We had to use a 97 F150 fuel rail to make it work.

I look to see if I have any pics, but it is something that is burried by a top of vacuum lines