66 signet

it is a holley street dominator, but i have a couple others(edel. s.p2.p 318, and performer) as far as bore yes it is std. with no ridge. yes it was a 2 bbl. motor. has 675 heads now(67-68 273-318) mach. rockers(or i have hyd. ones witch ever you like. thank you for you time.
cheers