I agree. No overlap is a bad idea. Especially if you have long tube exhaust headers. You are giving up free power that scavenging would give you. And for what? So that your boost gauge reads higher and your blower is a larger parasitic drag on the crank? Dumb

Max power deals almost always end up with overlap and healthy duration despite the power adder used.

Its not about the boost gauge number. Its about taking a minimal sized blower/supercharger (centri not included) and allowing it to maximize the cylinder fill when cfm (2.3l in this case) is lacking. Its also about keeping the iat down. By widening the lsa and bringing the overlap to 0 you are also opening the exhaust valve much sooner which will evacuate the cylinder of spent gases. Remember I am speaking primarily of this 2.3 blower on a 540. Not a large 10-71 with an abundance of flow. If you are limited on flow then its best to keep it in the cylinder. Not out the exhaust. Whats going to make more power? The forced air charge that is added or scavenging? Ill put my money on the boost every time. I do understand that depending on how big of a cam is ran 0 overlap may not be achievable but reducing it is the point