I figured he meant 500HP of spray!!!!!!!!! LOL
I guess it depends on how healthy the CP3 is. Mine never made over 488 with the Hot+2 ET on the 300 tune. 350 tune it ran out of fuel with a race valve. Duramaximizer/MP-8 wouldn't have done any good since there was no fuel to push with it.
500 RwHp has been done many times on a stock LBZ with tuning, lift pump and exhaust in the past. More common is the 480's as the fuel system tends to be a problem with most of them.
lb7 injectors are fun....
2002 Lb7, 5th set of injectors, bad trans, for cheap.
Was a tow vehicle for a baja race team, so it's kinda beat, at least in the suspension, bed, interior, etc. But.....it was cheap.