new regulator

[hurricanepb]

How much fuel pressure should i have at idle, with vaccume ?

 

[jasjamz]

Around 38. Should be set at 43 with the line off as a baseline. I bet the amount of engine vaccum will make a slight difference too.

 

[Razor]

How much fuel pressure should i have at idle, with vaccume ?

If you mean what should you set your FP too.. ask your chip maker. Example with a TT chip its 43 line off=37 line on.

233 reg reads 37 line off, 31 line on
237 reg reads 45 line off, 39 line on