Le Mans breakdown, help please!

[Phoenixcat]

I'm currently at Le Mans. On the way down the car cut out. I restarted then it ran for 10 miles and cut out again. I started it again and it cut out straight away. I changed the 100 amp fuse, it hadn't gone. An hour had gone by, and the engine had cooled down so i started and it ran fine for the remaining 45 miles to Le Mans including a 1 hour queue to get into the campsite. I took it out yesterday and it ran fine for a bit then was a bit hesitant. i think it's related to heat so i'm thinking it is the coil pack getting hot. Does anyon have any ideas? I had a new alarm fitted last year by Karl so it isn't the hot start issue.

Does anyone know what coil i need and where i could get one from near Le Mans or perhaps on the way back? I have a 1998 4.0.

Thanks in advance.