I was cruising at 45 mph around the lake for 20 min. Stopped for 15 min. Started up, sounded a little different. Tried to get up to plan and I have no power. Limped home. Any idea where I can start looking ? Does it sound familiar to anybody ?

Any warning beeps? I would start by checking fuel pressure

No warning beeps. Whats the esiest way of checking fuel pressure on a 496 ? Thanks for the reply

I just pulled out my fuel injection pressure tester. I should be able to figure it out. Thanks for the reply.

Well my boat is old school, but when mine does that it is almost always corrosion in the distributor cap. It will also start popping back through the intake. Clean or replace the cap and rotor and good for another couple months.

Been awhile... and updates?

The 496 does not have a distributor it is coil on plug ignition.