Quench is pretty complex, and was probably more necessarry on older NA motors that didn't have nearly as sophisticated air flow through the heads. My impression is that modern heads alone make quench less of an issue, but I could be wrong. I'd also tend to agree/assume FI mitigates some of the mixing issues, thought that's probably heavily related to design. Yours is a blow through setup right? The air coming out of the blower is probably turbulent as all hell anyway and continues to "mix" the fuel into the fuel air mixture through the intake. If the fuel air mixture is mixed coming in, quench is not so important or even irrelevant?
I'd be curious to know what the pro opinion on the overlap in a blower application is. I dunno. My "hunch" is you get all things equal, the marginal gain from a blower cam with less overlap is measurable, but not extreme? There are a lot of factors in the system. I'm not an engineer and just spit balling.