I can't verify it either but, I also put a lot of stock in what Mark (HondaMan) says. He really has a vast knowledge about the subject.tbpmusic said:I never argue with HondaMan (Mark).
Everything he mentions is good stuff that I would support.
Except that lifters (tappets, followers, whatever you call them) can't be replaced without pulling off the cam covers (bearings). Anyone who's actually done it knows that.
But I can't comment on those top end mods, never tried them. A little confused as to how the torsion bars could be installed with more tension - before tensioning them while installing, they already almost hit the cooling fins, don't think they could rotate any further downward before pre-tensioning them.
My only comment is that Honda specs the valve adjustment at a ridiculous 0.0012" for all 4 valves - I never even try that, I just use 0.002". Racers will typically use anything up to 0.005".