Fred, thanks for the link aned will check it out. I do remember the double hump heads but was thinking they signified fuel injection application. Cannot remember if they were used on the 300hp carbeurated (sp) engines. Would the 250hp engines have the single or no hump heads?
Thanks again


Bruce
Old Toy: Ol' Betsy stock 59 Apache SB Stepside (Gone but not Forgotten)
New Toy: 1962 Impala SS Coupe
The Driver: 1990 Toyota truck