360 trouble. please help

greenswinger said
Verify your plug wires are in the right order! .

Or check #5 & #7 for arcing. If they got too close to the exhaust manifold and burned the jackets, they can sometimes cause arcing and mis-fires.

Start the car at night and open the hood and look for sparks jumping (it's easier to see at night), or test the resistance of the plug wires...