Thread: Grading On The Timing Curve....

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Originally Posted by 65cayne

I dont think that sounds unreasonable (52 deg). I think what he is alluding to is cruise/no load timing such as the highway where he might be running @ 2900rpm or so, initial + mechanical +vac adv puts you right in that ballpark wouldnt it?

Backing down to 3000rpm...you have 4+18+24 = 46 degrees total timing.

Okay, not quite 52 degrees , but more than 36 degrees. Point being, if the car is tuned to run lean and clean, should it not be able to handle the extra timing at cruise?

Bingo. We are on the same page.

And BTW: I used a timing tape.....no guesswork.