wont spin

Stock intake and has a stock fuel pump and has 800cfm quadrajet vacum secodanies thanks for the you got a nice car to

Right off the bat I'd say you got way to much carb on that 340 for the stall and rear gears you're running and she's going full lean when you punch it. I'd try a 650-725cfm. Lets see what the other guys think.

Terry