never fired 306 fully roller motor for sale! this motor was built by forest and forest racing and heimpel automotive in kitchener. it was built as a street motor that closely matches the edelbrock 306 buildup on their site. this one has a little more compression and a windage tray. estimated hp is round 365. i actually bartered for this engine a couple of years ago with the intent of putting it in a mustang or a kit car. i remember the cost of the machining, parts, and the balancing plus labour was pushing 9000 dollars but my price was closer to 6000 dollars. id like to see round 5000 dollars for this jewel. contact bill at 519 576-9936 or email me at saawabi@hotmail.com thanks.