I've recently discovered an issue when the car first fires up, if I sit and rev the car it feels like its going to cut out or stall it also struggles to rev past 3.5k rpm.

This is often coupled with a bit of blue smoke from the exhaust, I'm aware my flywheel is rattling but am unsure if this is related or a separate issue?

Once the cars warm and going power doesn't seem to be an issue and it will rev happily!

Any one had this issue?