To be serious, I guess you have changed pistons, cams, probably rods, alternator etc. But have you kept the variable cams if you reach 8K plus revs?
head work, yep we kept the variable timing for driveability. Alot of tuners throw it away as its costly to keep it and map it properly. The valve timing to took us about 3 weeks to sort with M-sport helping etc. The engine still makes power as the revs climb but we have to cap it at 8200 for regs
