So use a starion or gm tbi and avoid all this carb voodoo science.

A starion ecu and fi will work fine on a n/a 2.6. Curtis (LandRaider) knows gm tbi, and there is mucho hardware/software out there to write your fuel maps and spark for the gm. All you need is a manifold adapter and you have a 670cfm TB that doesn't slosh and drip and depend on unmeasurable voodoo to work.

Not responsible for advice not taken...