Junkyard 5.9L Magnum + Edelbrock LA heads build
Jim at Racer Brown can be considered an expert
note the small difference in intake and exhaust duration 222in 226 ex
those shelf cams with 10+ extra degrees of exhaust are for iron manifolds on low exhaust flow pre 85 LA heads
if you do use them use one size smaller intake lobe (and exhaust) to help avoid reversion