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

Okay that makes a lot more sense.

Update for ya gents, I just ordered some blanks and .028IFRs. Going to tweak one thing at a time. Well I guess two in this case. Blocking the middle emulsion holes, and removing the top .031 IFR and replacing it with a .028 on the bottom as Turk recommended.

I cant get any brass set screws locally and soonest I can ship any is next week, winter storm surely not helping, so t-slot restrictors will come later.

I do have a question that may have been answered but I'm half asleep and wrapping up my thoughts: is the pump shot an entirely independent circuit? As in the changes I'm making won't affect the stumble if the pump shot was an issue?


What size pump shooter do you have?

Also, one more time for me because I’m old, clue me in again where the stumble is and how much throttle are you into when it happens.

Just an FYI. Having an extra emulsion hole open, or more than you need is a better way to say it or using too big of emulsion holes will cause what is called “slugging”.

You can see it on an A/F ratio graph. You will see a saw tooth pattern where it goes rich and lean because it’s getting a big slug of air. Then a big slug of fuel.

At any rate, slugging is real. Emulsion is to correct the fuel curve, not to emulsify fuel.