I recently purchased a 1990 Sea-Swirl Striper with an OMC 5.8 Cobra. The first trip out it shifted hard and aggressively in reverse. Adjust that and seamed fine for a tip or two. Now, loads up and stalls when engaged in reverse. Is this my ESA switch? Also, my secondaries on my Holley carb' is sticking causing a high rpm after running, not allowing me to shift into neutral unless I pull the cover and push it back. I can fix that, but I am not sure about the stalling? Any thoughts?