Rebuilt by Steven Stuart who was a GM Service Rep. from 1974-1987 and Auto Shop Instructor at Weber State University from 1989-2011. For his own personal use. When purchased from his Estate a coupe of years ago it had a 1967 fuel Injection Installed. Which is avaible seperatly if interested. I was told it had a 30-30 Dunov cam shaft. Which is a Hi Performance solid lifter camshaft developed at Chevrolet Motor under the direction of engineer Zora A rkus-Duntov. Which was designed to acheave up to 375 HP. W/Fuel Injection. I will gladly answer any questions. Thanks for looking