7747 $42 bin file ?

[Fast355]

Attached is an Excel spreadsheet with the factory timing table from a 1998 Vortec 5.7 liter. Maybe other members will post timing tables they use for Vortec heads? Vortec heads flow much better than TBI heads, so the Acceleration Enrichment parameter usually needs 20% or more increase.

dave w

He is not running Vortecs....Vortec block, LT1 flat top pistons, LT1 F/Y-car cam, ported 193 TBi heads.

I usually start with +50% AE with Vortec heads.