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

Slantsix64 said

Hmm if you have a bog at Wot try a 4.5 power valve for the secondary block so it gets a dump of fuel later on during the throttle opening vacuum drop.

keep that 9.5 for the primary I think a 10.5 pv for the primary would be perfect. Also 31 primary squirter and a 28 for the rear.

She sounds like she’s getting too much fuel dumped at once secondary timing is key for the double pumpers.

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I'll see if I can find a 10.5PV somewhere I think I tried ordering during a weird shortage period. IIRC, the secondary metering block on this carb doesn't have a PV port so I would need to buy a new block for it.

I am getting my new exhaust put on Monday meaning I will have ports for o2 sensors to run a wideband and I'm assuming that will tell me whether or not I'm having a lean or rich issue from the squirters? I also think it will help me tune the fuel more. I know people say that you should tune an engine off of what it likes, not an AFR number, which I believe and I have been doing, but I'd imagine I can use the gauge and blip the throttle and watch to see if it jumps up or down to figure out if its rich or lean.