PS I have an Edlebrock 1406 (600cfm) w/ elec choke that is currently on my 326 LeMans. It's a great carb and runs EXCELLENT. I'll be listing it under the for sale section in two weeks as my mighty 400 goes in the week after next. This carb is currently bolted to an older edlebrock alluminum intake (painted the correct Pontiac engine color) and will also be for sale. This would be an excellent combo for your particular engine and would be a direct bolt on and go, all you would need is a new set of intake gaskets, that's it!

My LeMans runs incredible with this setup and I am now getting 21mpg with the 4-speed in place and the 2.56 open rear.