Which carb should I get?

Out of the box and bolt on eddy is the winner. Bench mark adjustments and fine tune and holley is the winner. Depends on what you want to do. You will never get that eddy to perform any better than out of the box. Hands down choice for me would be the holley. Once the holley is bench marked and fine tuned the 318 will come alive and you will be thankfull you didn't buy the eddy!