Took my boat out yesterday for the first time since last August. Engine ran good as I put the boat thru its paces. Did several laps around the lake and ventured into a few coves. Had zero issues until I decided to leave for the day. As I was returning to the ramp, maybe 1/2 mile from the ramp I was cruising at about 3,200 rpm when all of a sudden the engine started coughing/chugging for about 6 or 7 seconds and then just died. After floating for about a minute, she fired right up and made it back to the ramp okay. My setup is a mild BBC w/ a Holley 750 and a Holley mechanical fuel pump. I have 2 filters in the system. One is before the fuel pump and one is after. All lines are 3/8" Any ideas as to what could of happened?