[Chalkie]

The Nosram / LRP motors are MUCH more aggressive wind for wind than say a speed passion, I would say a 7.5 is equivalent to a 6.5 - 6.0 speed passion, adding more timing either motor or speedo will just make it more aggressive and run hot.

I would start with 0 deg of timing on your speedo, if you feel the need to add any timing then you can add say 5 deg or so.