I'm Torn

he gets 20 cu in more with the 340 BFD and some better breathing if the heads are done to match the bore size
but wait 2.02 valves have to be done right or you loose torque- not good with an AT and Tall gears
people tend to overcam 340's
and 273's and 318's are really easy to overcam
longer stroke of the 360 gives more leverage at the same cylinder pressure and I'd rather have 40 cu in than 20 I can really feel 40 more ft lbs of torque