Thanks for the info guys, not using injection system got hold of a pair 40 webers and a very short manifold 1" deep. How much can be taken off flywheel, or what should it weigh when machined I have a lathe so thats no problem. Have read so much on getting the camshaft geometry right ie valve heights which then alters the angle the rocker hits the camshaft at, any info on this? Was hoping for around the 150bhp mark or is to high on driveble engine