Two front crankshaft bearings?? did you run it low on oil during a track day/drifting? These engines have been tested at full throttle at max rpm for hours on end, I see plenty of Germans flat out between 6000 and 6500 in 6th gear for miles and miles with no issues, lots of Germans and Americans and one Swiss chap have also done high KMs and had no problem. There are really only two reasons for your troubles, one is that it has been tuned and possibly abused, and two that the headgasket replacement was not carried out real properly, maybe the head was slightly warped, or the block face, and the extra boost from Revo2 at high speed eventually blew the headgasket and partial hydraulic in one cylinder and pop, out goes the cylinder wall. Its no use worrying now, move on and enjoy a new 450bhp built motor.
No nothing.
No Mods. No rockers. Just a chunky knob, thats now been replaced by an RS knob innit.
No tackiness.
Std as Ford intended, but with a space saver wheel and jack and nuts and wheel brace. oh.. and flaps, a man has got to have flaps.
Innit?