69 ignition problem???

Hey I'm jamming 400 hp outta my 360 I think I can afford an 8inch 10ga jumper wire,lol. It's what I had,2 hours from home, sitting on the side of a heavily traveled hiway; and it holds it's shape. We don't have hiways in Manitoba like you Americans do; the shoulders are barely wide enough to fit the car; I was in a hurry to get moving.