A little bit of maths

[crisis]

well perhaps because the BOSS290 is hand built its helping its cause

I dont think it is actually hand built. It may have the different components that are sourced from different places bolted together off the assmbly line but it would not be possible for any manufacturer to cost effectively hand build a motor. In any case being hand built does not mean it is blueprinted.

[fpv_gtho]

well they (FPV) put all the different components of the BOSS V8's together by hand so thats close enoguh to hand assembled for me. FPV get the blocks and heads from overseas and everything else is put on by hand, theyve been doing it since about 2000 on the XR8's and about a year and a bit earlier than that for the TS/TE50

[crisis]

My point is that unless a motor is built to the exact blue printed specs, it will probably give various readings. To do this every port valve seat, bore piston , crankshaft, mainshaft, flywheel etc must adhere to the exact weight, shape and size as the prototype. That is hand built.