[Guest]

I bought one of these and would like to know if the pressure can be adjusted.

 

[R0Y]

No they're not

 

[Guest]

I have one off a 92-96 kit. How can find out what ratio it uses?

 

[R0Y]

I have one laying around also
replaced it with a Cartech FMU

the JR FMU is 12:1 ratio and it suckz... that's why I took it out

 

[Bakeoff]

why does it suck? I'm using a vortech 12:1 and I love it. I had to raise my fuel pressure quite a bit otherwise I'd lean out at around 3K when boost was just getting going, but other than that, it's perfect.

 

[R0Y]

why does it suck? I'm using a vortech 12:1 and I love it. I had to raise my fuel pressure quite a bit otherwise I'd lean out at around 3K when boost was just getting going, but other than that, it's perfect.

I'm talking about the JR FMU...