Ian, Weeksy, at the risk of me sounding even more boring..............
the pistons on the BB kits do not provide enough compression, particularly on the later bikes.
Yes, you can do some barrels work, BUT as Rich has found, there is STILL a lack of compression which does not help the BHP by much. You cant touch the head tho.
Alan & Rich have had many conversations on this, they both know their machinery so as you can imagine, they are not giving up - but it takes time and also money to take other avenues.
Andy - who rode our bike at cadders said he was fine on the bends and able to pass inexperienced riders - anywhere except from the start/finish straight, where well ridden 620's were trouncing him for acceleration.
This thread seems to be going down the wrong route at the moment.
SO:
Back to the original post: Dom, your chart is great mate
C
[Edited on 9-5-2005 by CK and AK]