Quote:
Originally Posted by belgiumbarry
yes, it max out at around 3500.... can try 34 and see what differs.. ok, we in Europe have still 98 octane....but first i will have to check TDC on piston 1 , even if i can't reach it well... 
or.. is there another piston number firing at the same point at 1 crankshaft rotation later what would be the same for the timing light ??? more aft so i could reach it better to find TDC ? 
looked it up for a 351C... should be the 5the cilinder firing, beeing number 6 which is second from front left side ... this one i can reach alot better ! I'm i right ?
Now what can we put trough the sparkplug hole to see it raising/stop/going down ??? a "straw" ( spelling ? ) as children use for drinking out of bottles ? |
If number 6 is the 5th cylinder in the firing order, you can time from this cylinder. When 6 is on TDC compression (firing), cylinder 1 will be at TDC valve overlap (end of exhaust, beginning of intake).
Positive stop method, however you do it, is the only accurate way of finding "True TDC".
As described by Jim above. You can also use a modified spark plug with extended reach into the chamber to "kiss" the piston in both directions.