Recommended 4bbl carb for stock 318

Mattax said
No. They are squarebore pattern. I don't think RRR knew the OP was going to use a spreadbore type intake.

Will the eddy 1405/1406 fit the spreadbore intake without the adapter/spacer. That is my main concern I have the same intake as the OP with a 1850 Holley and i really don't want to run a spacer.