New life for an old 340 (stock stroke)

Not saying there is any magic in the LSA but I am saying I like to use it to get what I want.
Also saying it is not always wise to go to a narrow one especially in the case of these 4" crank with OEM heads deals.
I do agree with you however--the whole combo. J.Rob
IMHO... points to knowing the application needs first and then combining parts to get what you want. Big breathing and smaller, wide LSA is gonna compromise peak HP but is gonna spread the usable torque band. In some uses, where you never can put big peak HP to the ground, and don't have a 10 speed transmission, this is the best outcome. So there is no one 'best formula', just the best for application ABC....