Please help!! no oil pressure after oil change!!

I have no idea what happened, I drowe to the garage and changed oil and filter and when I started the 383 -66 I've got no oil pressure!!! Let it idle for a minute or two but no pressure and I can hear that the lifters got no pressure.
This is the third time I changes oil and filter since last spring and never had any problem before.
Removed the new oil filter and it was completly dry, crank it over without the filter and no oil is coming from the pressure side.
I got no oil pressure meter, just the warning light but as I wrote, I can hear it got no pressure and the warning light is lightning.
Please help!!