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Old Mar 13, 2005 | 03:40 PM
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I will be changing the ignition system in my 71 L48 to an HEI system. My question is I have a rebuilt tach drive distributor converted to hei using a crane XR-I system and also have a Mallory Tach drive unilite mechanical advance.

Which distributor would be the best to use, I am also going to install a 327/350 HP cam, LT1 manifold, and a holley 3310.

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Old Mar 13, 2005 | 07:35 PM
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anyone?
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Old Mar 13, 2005 | 10:20 PM
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I don't know anything about aftermarket ignitions, but I recommend keeping the vacuum advance. You will run cooler and use less gas when cruising. Joe
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Old Mar 13, 2005 | 11:28 PM
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Your original tach drive distributor with vacuum advance is likely the better choice, but depending on the vacuum situation with a cam swap, you may want to change out the can for one that acts at lower vacuum.
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Old Mar 14, 2005 | 01:02 PM
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When asked, Lars recommended I use this one on my 69 350-350. Jeg's number 121-8572. He also recommended using the MSD spark box in the system.
http://www.jegs.com/cgi-bin/ncommerc...55&prmenbr=361
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