A few google searches for vortec timing has landed me in this forum a few times.
A year or 2 back I put a Holley stealth ram on my 355 small block with vortec heads. I am running it with their HP ECM. I initially had the handheald unit to install it and get it running. Since then I have installed the holley program and started Down a deep abiss. I have learned how to adjust my Air/Fuel table to help improve my economy through the ecm's learning feature. But playing around with the idea of modifying the timing table. So I may be asking some annoying questions from time to time, would appreciated any advice!