i have a 350 with h.e.i. when i got the truck the guy told me that the coil was bad...no prob, i just put a coil and cap that i had in the garage on it (a good one, of course)the engine ran for about an hour, it ran rough(tune-up i figure)then died. i checked for fuel and check connections (i.e. alternator)and everything looks good...then i checked for spark-none. any suggestions or help would greatly appreciated...this is the motor going in my 66 elky!!

http://www.chevelles.com/techref/ftecref5.html

thanks for the quick response...also, could it be possible that there is something wrong in the wiring thats burning the coil out.(i.e. ignition switch,or wiring under dash) help please. thanks
mike

update-checked for power at the coil wire (the heavy guage wire that runs to the "bat" terminal) and there is no power...any suggestions?

Is it possible that your wire is a fusible link? Not sure if HEI systems use it or not.

Dean

good thought