> >The numbers came from a vacuum advance distributor chart from my
> British Leyland
> >Triumph Repair Operation Manual for TR4, TR4A, TR250,TR5 and TR6
> published in 1977.
Thanks for the information, Greg.
> I bet that
> the original specs for these distributors were originally in
> camshaft degrees from what your earlier post stated.
I'm inclined to agree, 3 degrees at the crank isn't worth fooling with.
Even 6 degrees seems kind of low. And I've seen other factory manuals that
are confused about the difference between camshaft and crankshaft degrees.
But I have neither time nor inclination to test one and find out for sure.
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