13.3's to 11.8's to Forget it...

LOL. I will tell you this, I've never put mag heads on a LA. Have you? Let's see what they do. Who knows, I may get 4 tenths just out of those?
LET ME SAY IT LOUD ENOUGH TO GET PAST YOUR WOODEN EARS...
YOU WILL NOT DO 11.8 WITH A STOCK LA 360 BLOCK AND MAGNUM HEADS...

Without nitrous... Turbos or blowers...