5.9 magnum swap

My thoughts were either:
rebuild 340 w/EQ heads, Air Gap, retro roller cam, & big question -more stroke. OR,
What you said-5.9 Mag short block, EQ LA heads, LA front cover, Air Gap/FITech. & again the big question -more stroke.
Know of any torque/Hp curve comparisons between modern throttle body FI vs multi port? modern meaning the newer units on the market, not a comparison from the 80's or 90's. Is there enough of a difference to make me say "screw the look"?
Sorry about the hijack, I didn't mean to, but its related, so....