i have 53 ford f100 with a SBC 350 ( i know ) don't what year the motor is anyway my problem is when cold i have good oil pressure after it warms up it drops to like 10 or so ,, the oil pan has been worked on , i mean someone has welded a 2 "on it adding 2" of more sump for some reason ,, i dont know what oil is in it ,, i have bought a HV oil pump ,, do you think this will help ??? and what do you guy recommend ??

thanks guys