Boost gauge question....

[1FAST68]

I have used a mallory 4309 regulator for below 15lbs of boost, but I don't know what your fuel pump is. Hope not a holley blue style!!

My 1rst setup I used a mechanical edelbrock pump that had the clockable bottom. I drilled and tapped the top of the pump for a 1/8 nipple and ran a vacuum line to it. It would raise fuel pressure with boost then, but I only had 8lbs of boost back then.

If you run your fuel pressure at 7lbs and have say 10lbs of boost that means you will need 17lbs of fuel pressure and another 5 to overcome pumping loses and g force in the line, so 22lbs of fuel pressure at wot.