| So to recap I have stripped the top end, lapped in and reshimmed the valves. Checked the piston rings and bores, reassembled again carrying out a soft solder squash and setting the base gasket..... well today I took it for a dyno test, changed a faulty ignition coil which was causing a misfire
The read out was just got over 47bhp but was set to 46.7bhp to get a better torque curve.
Uhm.....what 4 bhp between friends when your a fat lad.
Mark No81 who has a standard 600 ss produced 46.8bhp.
Roll on Mallory! | 
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