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L69 camshaft change computer friendly?

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Old

Apr 19, 2009 | 02:59 PM

#1

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Joined: Sep 2007

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L69 camshaft change computer friendly?

Do you have to change the computer if you change the cam on any 305 HO L69? How radical can you go with a cam before the stock computer gives you trouble?

Old

Apr 19, 2009 | 03:33 PM

#2

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Joined: Mar 2000

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From: Littleton, CO USA

Car: 82 Berlinetta/57 Bel Air

Engine: L92/LQ4 (both w/4" stroke)

Transmission: 4L80E/4L80E

Axle/Gears: 12B-3.73/9"-3.89

It's fairly tolerant of cam changes. You're completely safe if you get a "computer compatible" cam. Keeping overlap down and LSA up are the keys. 230 @ .050" and 110 LSA are usually safe.

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