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BB timing data needed EFI

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Old Aug 10, 2020 | 07:55 AM
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Tom_K's Avatar
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From: Finger Lakes area NY
Default BB timing data needed EFI
1968 427/390
setting up timing table for Holley Sniper / Hyperspark
Looking for timing advance for:
Idle
cruise
WOT

this internet and ref manuals are full of procedures to set timing... I just need the numbers....
thanks - TK
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Old Aug 10, 2020 | 08:19 AM
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This should work for you. You may want to reduce advance at idle to 25 degrees. I run 30 because I have a bit of a cam in it. It's a built '71 454 LS5. 10:1 compression.



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Old Aug 10, 2020 | 09:09 AM
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15 base
38 total
48-50 part throttle cruise
Play with the base to see how it responds to you.

Jebby
Last edited by Jebbysan; Aug 10, 2020 at 09:10 AM.
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