well i used to think that but i had a 86 with a mild 460 and it would run mid 11s like nothing and the cost to build a good dependable small block at 800 hp is twice of a big block and maint. is twice as much so im going to try the big block its all theory so will see ? [img]/phpBB/images/smiles/icon_confused.gif[/img][img]/phpBB/images/smiles/icon_smile.gif[/img]