Can anyone help? Please?

Run a hot wire from B+ to coil+ and then see how it runs. If this makes a change you have low voltage to ignition or a bad coil (or both as one can be the result of the other). Things to check include ballast resistor and bulkhead connections at firewall. If this a points ignition don't run it very long hot wired. Also make sure you don't have any loose grounds being affected by engine torque.
If it is fuel related things like low fuel level in carb, weak fuel pump, clogged filter, vacuum leak and clogged or non functioning accelerator pump may be an issue.