Could use some suggestions. I appreciate the help. My 360 recently had electrical problems. It would suddenly randomly, immediately shut down even tho it was running great... slow speed and/or freeway speed. Then got to the point it wouldn't start. I ended up swapping in a new ECU box and it was running good again... for about 15 minutes and then started running rough to the point I had to give more gas at idle to prevent it from stalling. Then it stalled. Would not start again until cooled down. So now it's in that same pattern. After getting to full operating temp, 180, it starts to get rough and need to give it more pedal to keep it going until ultimately it shuts off. I feel like this is a fuel problem. I swapped in a new fuel filter but that didn't solve it.
360 has a mild cam, edelbrock alum intake, 800cfm thermoquad carb, stock fuel pump, stock 360 heads, stock pistons with low compression 8:1