
09-24-2021, 05:13 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
I just posted this on another thread, so I might as well post it here. This curve has served me well for the last 15 years. FE, iron block, aluminum heads, total timing at 35 degrees and it comes on as per this graph.

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