What are these carbs?

[70Custom]

Can anyone help me with these carbs? What year, cfm, any other info you can provide would be helpful. Hopefully I have the right numbers for you.

1st one
7043250RA
1444

2nd one
1705824L
1778 BLT

The first one came with my 350 coupe bought in pieces about 16 yrs ago, still in pieces.
The second one I picked up with a manifold to go on my 350 conv. Finally got it running, dropped in a used 350, switched from 2 to 4 barrel. It is just a stock 350, seems to idle real high. I am sure both carbs need rebuilt, just not sure which one I should use.
Thank

[gs4u2c]

You can look up most carb numbers here.

http://www.carbs.net/Number/oemnumber.asp

This is a 73 Olds 350 and a 1978 Buick.

[70Custom]

Thanks Tim

[70Custom]

I know there is much info about these carbs, but can anyone recommend one over the other? Is a q-jet a q-jet, other than the cfm?