You're not getting 12 volts at the ballast resistor in the run position which drops it to about 6-8 volts. In the start position you should have more volts to the coil, 8-10 volts, when you are in the run position check voltage at the ballast, or you are not getting voltage from ignition switch...
I had to change the starter battery cable, and it is pricey, the bracket that bolts to the block that holds the cable and depending on what manifold maybe throttle bracket and throttle spring bracket. I did have a 440 in before the Hemi, but the above from it didn't work for me. Car is 71 Cuda...
Wonder why just on 340's and not on 383, 440 and hemi's. I would think heavier engines would benefit also. Did they think 340 cars were going to go to road races?
Since your car is more than 25 years old, NY just inspects brakes, and other than smog BS. Unless you want all that BS, run the tanks inc. with the pump and run a return line and a regulator and you'll be good to go.
Welcome from Northport. I have a 71 Cuda that I FI and used a Tanks inc. tank with an electric pump. I also have a 74 Duster and installed same tank with the electric fuel pump. Since they are not daily drivers, the electric pump makes starting so much faster. The Duster is a carb and what an...
70-71 parts book shows Cuda & Challenger using same tach, no rpm difference. The 72 Challenger was bought for the Rally dash and junked after I removed dash and wiring because car was a rust bucket back then and no after market sheet metal available.
My rally dash also came out of a 72 Challenger 318, but is an 8000 RPM tach. Maybe an early car and they were using left over 8000 RPM tachs till they were exhausted.