Similar size carbs / similar jets i would have thought Mike - i'm no expert though. Good thing is the jets are only a pound or so each and if you have a friendly mot station with a emissions tester you can try a few different sizes till you get the right balance. They are very user friendly:

http://www.fastroadcars.co.uk/shop/i...iewCat&catId=5

For Megajolt there are plenty of base maps you can use to get a good starting point.

Regards....Andrew