EFI Help me if you can I'm feeling down

Getting close to purchasing either the Fitech of Holley Sniper EFI for my mildly built 360 driver and see some issues with the map sensor on a dual plane manifold not picking up both sides would you be better off using a spacer like this https://www.summitracing.com/parts/...-performance&gclid=CLP-qvmdxtACFQgOaQodTL0Iew or a manifold like https://www.summitracing.com/parts/edl-5076/overview/make/dodge ????? power range or am I over thinking this