What fuel pressure to run???

[trbolvr]

I am ready to install my adj fuel regulator and need to know about what pressere to set it at. I have a walbro 340 hotwired
with 30lb injectors, stock turbo, rjc power plate , modern muscle
chip for stock set up and a smc alky kit. I have a 237 regulator on now and seem to running really rich????
Thanks for any tips....

 

[ChrisCairns]

Start around 42 psi line off. Or whatever the chip maker specifies.

 

[Swt_86]

Your 237 is set to 45 psi. The stock 233 is set to 40 - but you knew that sooo if you are rich, and your 02 sensor is good, 38 - 42 would be a good place to start. Your computer will always try to adjust your A/F ratio to optimum. Your BLM readings are a good indicator at part throttle, your 02 readings will point you in the right direction at WOT.