1987 PCM Chevy 454 with Borg Warner tranny<br /><br />i've bought a couple of 'manuals' that aren't much help. one from the boat's manufacturer that is little more than warnings and another (can't remember where) that's more of a rebuild shop manual. both are very short on diagnostics. iboats doesn't have much listed for gm engines.<br /><br />what's a good manual for a marinized chevy big block?<br /><br />thanks