[Darren69]

Personally i wouldn't bother with ti rods and valves on a 2v they dont rev hi enoigh to neef tbe extta strength and wouldnt make any more power after about 8k even if you did hit the rev limits all the time they dont benefit from being ridden like that. A 4valve motor like the 748R would because they make mote power at higher revs so it would make more sense for those types of engine. Maybe would be of benefit if fitting a supercharger but i doubt you would get more power from a 2v head as the gas flow rate determins power and you cant fitbigger valves that what you have so up the cc to 944 which wil up the compression anyway and give you bigger bangs hence more torque which is what you want from a 2v. Which is why the 1000 twin spark is one of the best engines fitted to a monster.