With accessories and with less compression and valve.
If you do the 240 divided by .75 then subtract 50 hp....you're in the ball park, same with the 275 version. Accessories eat it up.
Now figure the motor tested was an actual CORRECT factory blueprint test mule with every spec on the money proto type , meanwhile the mass production were loose **** like what we got.
Again..you're in the ballpark.
