Explain Quench to me.....GO!

This all makes sense to me as well.... The Stage 3 Hemis aren't true "Hemi" for this very reason, the stage 1 & 2 Hemi had NO Quench area, BUT still ran like Hell like as tho the driver stole the car they were in.... so, the quench area, is just a "boost" to Wedge type motors? For complete A/F combustion?

Seems to me that the Mileage this would create and complete combustion is about the only gains, and that ought to produce a little in the HP range of things but......Is this why the Wedge motors in the 60's were almost max'ed out in HP? I mean, yeah besides larger CID per cylinder.