Holley Bypass/Regulator & Fuel Pressure

[HuckleberryB4]

We have ours installed after the carb. We've always ran our in-car gauge off the back of the bypass through the "out" port. I came across some info the other day and Holley recommends using the 1/8" side port for the gauge. This makes sense as you would get an actual reading of what the pressure is before the bleed jet, rather than after. But I've seen more times than not, guys run their gauge off the back. Any opinions?

Also, we just changed from alcohol to Sunoco 112. What size bleed jet do you guys use and what Fuel Pressure do you recommend on a Holley 750? Thanks.

[mopar92]

I like running the regulator at the back of the log. Get an AN fitting with an NpT and pull it from the log itself. Pulling fuel pressure after the reg or at the reg has never been consistent for me.