Cheers Janno but I'm going to do the work myself as I'm on a tight budget for now just after a reliable 200-250 bhp.

Looking at a silvertop conversion but need some help what power do the standard rods/pistons take and how do you go about lowering the compression ratio?

Does anyone have a link to a fitting guide?

Also does anyone know what management to run as I'm a complete novice with it but wanting to learn thanks