Hiya all, hope all is well, I need some help and advice please,

I got the Cossie out to play a week ago, while I was driving it after 25 min’s I felt that the car was not running right, idle was a bit rough, but as the journey continued the idle got worse, then at one point it cut out on me. I managed to restart it once; it took me a bit further down the road when it cut out on me again. Now stuck in the bus stop I managed to push it into a petrol station and checked inside the bay, HT leads and silly things like that. I then managed to start it after 5 min’s but all the way home the engine was misfiring like mad and at 1 point I got a pop and a bang from the exhaust. This is the point I just managed to get home and stuck it on the drive. I thought I’d get a new distributor cap, new rotary arm and group a coil pack. Ready for me to stick in the Cossie as these bits are not expensive and thought it might be these at fault. I went home after a week from having the issue and started the Cossie and was able to drive it around the block? I have not even put the new bits in.

I’m confused what it could be. When I get home I’m going to run it till it gets to temp to see if I can replicate it again, I was also thinking of getting a new Crank Position Sensor. (Am I going down the completely wrong line)

Has anyone else experienced this or know what the problem could be,

Many Thanks

Andy