old school 340 cam help

274 xe from comp..under .500 lift.
small for a healthy 340 in my opinion. yep
just a little bit bigger than the 340 cam with the lobes squeezed together chevy mass production grind
XE274 HL is a completely different animal
incidentally 440 source sells a 274xe and says it's to replace the Mopar Performance 484 IMHO not so -the 440 source is also an .842 lifter cam
440 source's smallest .904 lobe cam is their 231/237 .525 lift cam HE274HL style