the number 7 shit is bullshit. a motor fails cause it was mistreated or improperly handled. a 5.3 should easily make 800 rwhp without a hiccup if in the right hands and given proper support. Like cool IATs, cool ECT, good tune, smart driver, good tune.

also to get 500 hp i wouldnt consider 2 power adders for such a low hp level goal. 500 is roughly 9-11 psi. two power adders is just an excuse for the lack of another. Plus its more complications especially for such a goal as of 500.

i think ducky has been unhurt for several years at 500ish with his 5.3, trevor1 has well over 600 on a 5.3 for many years now, im sure theres others but those are just to name a few