I originally had a dodge 440 w headers and a tired jacuzzi out back, swapped the jacuzzi for a berk jc and an olds 455 here's my situation my berk is set back a little more I'd say by looking at the old motor mount holes, 6 inches at least didn't mean to, it's just how it worked out probably better anyway.  So obviously my engine is now set back as well. It's a brendella pantera so she's narrow in the back what attitude would my boat have if I moved the 455 forward to get my headers to clear ? I'd think it might actually help my performance but hey I only built this thing last winter lol