need help. wifes 30 won't start. its a sbc. i checked and it getting gas. i put a timing light on it and get nothing. i used a meter and checked the + and - on coil with key on and get nothing. shouldn't i see voltage? i've never had a coil go out an don't know really how to check to see if its bad. since i'm not getting fire (timing light) i suspect the coil. help .