I have a question about I think it would be decel spark table. I have an issue when coming up to like a stop sign and you let off the throttle and push in the clutch. It drop to like about 750 then jumps to like 1500. It will bounce like that for 3 times. The 3rd time it will drop below t Does just below 500 and want to die then it will settle down and idle fine. Does anyone know what would cause that or how to fix it. I was thinking it was the decel spark table but didn't seem to fully fix it when I was messing with that table. The car is a 14 GT500.