Any performance gain when you square jet?

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I have a Holley 750 dp with the Proform main body with 82/92 jets and a 6.5 pv. I was just wondering if there was a performance gain/advantage to square jetting and plugging the pv or just leaving it alone. This is on a 410 SB stroker that is mostly used for racing, limited street driving (and yes, I know this combo wants a bigger carb, but that will have to wait till next year).

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To me its not a performance thing with the PV, I dont
use because its a consistency thing... if it were
slow to open it would be a bog and thats a loss.
For a street car it doesnt matyter that much if it
were a touch slow on opening..... JMO

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I thought it was done to keep from laying down on the big end when the revs come up and the increasing vac. lets the pv close?

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