dirtypool - if you go with the 0* thrust, then obviously you won't need the measurement, but for those that do, if you measure in 11mm in on the right fuse side, that should put you at the 3* mark.
My firewall has 0* thrust so my cowl is straight as an arrow!!
Well, mine is at 3* and my cowl is also straight as an arrow. There is a built in thrust angle on the front of the cowl that makes it easy to have the spinner be parallel to the cowl.... so if you have a 0* firewall, and 0* thrustline on the engine, then this part of the cowl must look off-kilter (sp?).
Spar