many of the top tier manufacturers will NOT post bs numbers (ie hp and torque) because they know that its not true and are nowhere near realistic.

Where did you find your info for .90 hp on the tz? because on the www.nitrodynesystems.com/ dyno, it puts out .8 hp at 34,000 rpm.

Noobs - buy engines based on the HP/RPM/TORQUE claims
Experienced guys - Buy engines based on the reputation and ACTUAL performance.