There are two separate hot start issues. One is where the solenoid doesn't work and you turn the key and there is nothing. The second issue is slow cranking. For some mysterious reason pontiacs can be much harder to turn over when hot than when cold. I solved the slow cranking issue with a 1000 CA battery and 1 gauge cables. I have a theory that for high compression motors, when cold the lifters aren't pumped up so the intake vale closes sooner and the compression is lower making cranking easier. When hot, the lifters are pumped up and the cranking sees the full compression.