I’ve done everything I know to get the motor to start. I have spark at the plug, the timing is correct and have gas to the cylinder and it won’t pop? I’ve done all the suggestions from the members here and I’m in the same spot. It must be something simple I’m over looking. I’ve changed the cap, body , and rotor plugs and Head gasket, drained and added new fuel. Again I’ve checked that the piston is at tdc when I put the timing pin in, I have the Nu-wrench and it pointed at #4 in the distributor the plugs are sparking and I have new gas at the plug. After a week I give up???