Fine Tuning a 360 Magnum with a Brawler "Double Pumper"

jmanhoff said

I forgot to add to the caption that was the cut out I was hearing, you can hear it in the video I just put the gauge in as reference to throttle. My cruise vacuum is about 18 or so that’s how I got the 9.5 PV along with where it starts to struggle.

Click to expand...

Then, if you're trying to choose a power valve based on cruise vacuum, I'd try a 12.5. Idle vacuum you would probably be looking at the proverbial 6.5 Holley recommends for everything. With 18 hg cruise vacuum, you probably don't need to tune for cruise vacuum. But you can certainly try it.