600 hp is more than enough for my cuda. Running best of 11.673 now and would like to be able to run low 11's without breaking a sweat while keeping it streetable. I have caltracs with mono leafs so hopefully I can get the extra torque to the ground? Will an 8.75" rear hold up though?

How many hp would you estimate my current 440 is making? It .030 over, stock crank, stock rods, trw six pax pistons (not zero decked), 9.9:1 compression, ootb eddy 84cc heads, rpm intake, comp pro mag rockers, 850 mighty demon, msd 6al, 2" primaries to 3.5" collector with 3" exhaust, 509 hyd cam.