I just picked up a rochester quadrajet from my friend. Its previous life was on a 350 out of a 77 motor home. He bought a edelbrock performer 600cfm to replace it. I was wondering if this is a carb worth rebuilding and using it on my 77 monte carlo. But mine has a 4 barrel on it allready (Which is in need of a rebuild i think) because the electric choke sticks on and it take forever to warm up in mild wather. Should i just get rid of the one he gave me? and the one that is on my car, and pick up a edelbrock performer 600cfm also ? help appreciated.