Amp Setup with or Without Distribution Block

How much current can power wire handle for 0/1 4 and 8 guage. I have two high powered amps that have 150 amp fuse rating and need 0/1 guage wire. (Also I have two amps that use 4 guage wire and will setup the same way.) Which is the best way to wire the amps: 1. O/1 Power wire run straight to the positive of the battery (fused of course)and use a distribution block for the ground 2 ground wires in 1 ground wire out to the negative of battery. 2. The 0/1 power and ground each use a distribution block 2 in 1 out from the amp to the battery. 3. Run all the O/1 power wires straight to the battery's positive terminal and the ground wires straight to the battery negative terminals. If I use this way should I also make copper buss bars to attach the wires to the battery terminal posts.

For cable size recommendations, see here: https://www.the12volt.com/wiring/recommended-car-stereo-wire-sizes.asp You can see 1/0 gauge is rated up to 350 amps, 4 gauge 150 amps and 8 gauge 100 amps. Just make sure you don't exceed these ratings. I'll leave it to the experts here to give you their recommendations.My ex once told me I have a perfect face for radio.

What is the rating of the alternator and what size cable feeds the battery? Can't see the point of running any combination of cables that have a combined cross-sectional area much greater than that alternator-to-battery cable.