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Old 04-08-2022, 10:44 AM
jhein's Avatar
jhein jhein is offline
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Join Date: Dec 2020
Location: Oregon
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Default Timing curve

I have a stock DUI HEI dist. It has a vac adv of 12 with mechanical adv of 24 by 3000 rpm. That's set up for a stock motor. I called them and gave them the specs for my new motor and they sent me a set of springs and weights that will reduce the mechanical adv to 20 by 3000 rpm. Does that sound right?

The motor is 468 cid, E heads, 10:1 CR 236/242 @050, 520/540, 112 LSA. Fuel will be 92 octane.

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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear

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