truck wont stay running while driving

[1972BackInBlackC10]

ok so its been awhile and i dont know if anyone above will see this or not, got sidetracked with another project but i got back to this one i put a new carb and a new fuel pump on and its still doing it, so i bought a new module and im just wondering if the silver transistor thing beside it will effect how it runs, its corroded and im not sure what the inside is like, the distributor was under water at one time i also checked the springs and vac advance and everything springs back into place properly

heres a pic of the module and silver transitor thing i took off