Chrysler 300 Hurst oil pressure

[annbarbq@xxxx]

I have a 300 Hurst with 77,044 miles on it. Drove it about 10 miles then 
changed the oil. I used 10W30 Valvoline oil and Ford Motorcraft FL-1A oil 
filter, the equivalent of Fram PH8A oil filter. Oil filter removed was FRAM PH8A. 
After changing the oil, the oil pressure light stayed on ( no oil pressure 
gauge on my car ). I replaced the oil pressure sending unit to the oil pressure 
light, but still the light stays on, so apparently no oil pressure?

Any suggestions on resolving this oil pressure problem? I considered 
removing oil pressure sending unit and installing mechanical oil pressure gauge to 
confirm no oil pressure. Also I talked to NAPA about a new oil pump - they sell 
a standard one, a high performance one, and a high performance and high 
volume. Which one to buy if it turns out to be a failed oil pressure pump? Thank 
you. Steve in Columbus, Ohio.