Guest 1937RHDNZ Posted July 28, 2006 Share Posted July 28, 2006 Has somebody found a 'sweet' initial timing spot for ignition timing using your 87 AKI fuel which is very similar to our 91 RON unleaded octane fuel, the lowest octane available here. Assuming all other (point's, tappets etc) settings are correct and the distributor is pointing to the 'high' mark. I would be using a timing light. The book says 6 Deg BTDC, but I would imaginge that it would be a little more for todays gas.Also does anybody <span style="font-weight: bold">never</span> use a fuel additive as a lead substitute, assuming valves & seats are factory type? Link to comment Share on other sites More sharing options...
The Old Guy Posted July 28, 2006 Share Posted July 28, 2006 The octane you have available today is considerably higher than was available in 1937, experiment with the timing and use the setting that works best for you. I have driven my 1940 Super over 104,000 miles,and have not used any additives. I just completed a 1900 mile trip in 97 degree heat , and the car ran flawlessly Link to comment Share on other sites More sharing options...
Matt Harwood Posted July 28, 2006 Share Posted July 28, 2006 My 1941 Buick owner's manual suggests using 72 octane fuel for best performance. I'd say that it will run just fine on the least expensive fuel you have down there. Heck, it may even run on some cheap whiskey and kerosene! <img src="http://forums.aaca.org/images/graemlins/smile.gif" alt="" /> About octane and old cars Link to comment Share on other sites More sharing options...
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