I need to know the Tune Up Data - plug type and gap, timing degree info, point gap and dwell if you can. I can't find it on the internet and keep finding sites that want to infect my computer. Thanks, Jim
You'll be looking for a long time since they stopped making 396 engines long before 76. Best to try to figure out by the numbers what the engine is actually out of and go from there. This only helps if it's still completely stock. For example plug gap will be bigger if it's got an HEI.
Plugs R44 or 44t, gap at .35 timing 4-6 BTC, points .19,dwell 29-31.Should put you in the ballpark. Find the year of the motor & might get closer.
http://www.tpocr.com/chevelle1.html V8-396 325hp 4bbl Plug / gap 43N -.035 Point gap / dwell .019 28-32 Firing order 18436572 Timng BTDC 4° Idle Std. 700 rpm / AT 500 rpm