I'd just use some cheap oil to flush it out,start the motor and let it run a few minutes then change the oil again.
So your theory is the fuel pump is damaged and pouring gas into the block? I assume this is a manual pump run off the cam?
What do you have for an intake and carb?
By the way I looked back at your intro post to see if there was an engine pic and noticed you have Oregon license plates.
I live in SW Washington but work in Portland,I was born and raised in Oregon.

 

Yea that’s what I thought because it was an old pump anyway. I have a stock intake I believe, the guy I bought it from said he preferred the stock to the performance. The carb looks like a worn quadrajet?, not sure I’ve only heard of edelbrock and Holley. However this carb worked about 90% efficiently on my old 350, that’s why i thought a fuel pump is more likely the problem than the carb for my situation. But it’s possible the carb may have gone bad in the 2 weeks it sat.
Because I got rid of the gas in oil problem for now and checked to make sure spark plugs are not being flooded. But the car is still not starting. The distributor is still sending spark, and now I’m getting clean fuel. There’s still compression last time I checked. So could air be the next problem? Maybe the carb is not opening the lower vents all the way. I only say this because they don’t move by hand like my edelbrock carb does. However I am in no way An expert on carburetors so I’d appreciate any replies.

 

Okay so the Q-jet is the stock GM 4 barrel carb,the secondaries (bigger throats in back) are vacuum actuated and only open with the motor running when you put your foot in it.
The primary side should open when you move the throttle back but it's at the bottom of the carb,at the top is your choke and it will be closed until the engine fires up.
You can open the choke by hand and see the butterflies at the bottom where it goes to the manifold.
Now with your gas problem I'm wondering if you're not flooding it trying to start it,it may well be getting too much gas especially if you keep pumping the carb trying to start it.
These Q-jets are notorious for sticking chokes and if it sticks shut it can flood the motor pretty fast.
So try this open the choke and look inside while pulling the throttle open to be sure the butterflies are working,next wire the choke open with something so it can't close and try starting the car,it may fire and then die when cold or you may need to pump it a few times to keep it running.
If she fires up this way you'll know you have a choke adjustment or pull off problem.

 

Yeah I tried this a few times before it never started. Double checked just now if the primary butterflied were opening when I pulled on the throttle. They are opening so I think the carburetor should be good. I tried starting it with the choke open and still no start. The only sign of life the motor has given me was when I pulled a plug out to check for spark and cranked the motor over. It didn’t start but sounded like it was misfiring, at least it gave me more than dead crank. When I put the plug back in however it goes back to a dead crank. Really out of ideas at this point, but thanks for the replies everybody I appreciate it .