RE: Corby Starlet
Jim, Mate I tested a OS70 in the cow... I believe the OS is a little smaller than the Magnum ... Could be just me but there was a difference (the OS70 Ultimate will DEFINATELY fit in there). There is enough room for heaps of different power plants and some guys in the US have put .91 four bangers in due to the higher elevation (though this would need a little hack & crack to fit!!) My little mag .61 looks to small really! Does the job though.