TQ on LD340 or Air Gap

The air gap might be 2/3 hp better not sure how it would be with a spacer or if it would even fit under the hood with a spacer. The LD can be hogged out for the tquad just use the base gasket as the templet. I would be more inclined to use the LD over the gap with a spacer. I would not run the heat crossovers open and I would use the 1/4 plastic spacer under the carb.