I just completed a complete engine rebuild on a 1967 comet capri. I did some modifications, .030 bore, crank ground, rebuilt heads, 4 barrel intake, headers, and an MDS coil. When I first turned the engine over for the first time I had lots of spark. The timming was out 180 so I disconectes the coil wires, and pulled the distributorto corrected it. When I turned the engine over there was no spark. Since then I have replaced the coil with a stock coil, points and condenser. Still no spark. I tested my ignition wire, it is at 12 volts on the positive side of the coil. I also have 12 volts at the negative post of the coil. There is also 12 volts at the wirethat connects to thepoints.I have checked the grounds to the block and firewall, they are fine. Now I seem to have a very weak spark sometimes and no spark other times. I have started to pull what little hair I have left so any help would be greatly appreciated. One other thing I'm worried about is I've turned the engine over for a total of about 4 or 5 minutes trying to fix this problem, my concern is my cam and lifter break in, am I still ok? HELP!!!

 

Cold the MSD coil have blown the newer condenser?

 

Maybe recheck timing by being sure (with valve covers off) that both valves on number one cylinder are closed at TDC. Thenwith distributor set in on the fireside (both valves closed -timing correct or close to it) and clamp lightly snugged down and rotor pointing to center of number one on distributor cap -retard timing (already fired number one so setrotor just after number one on cap in the rotors rotation path). Make sure you know which direction your rotor turns. Firing order is set clockwiseOR counterclockwise in the SAME direction as the rotor spins (rotor spin determines clock or counter clock).