I asked in another thread about this product, Ramchargers Timing Tuner but no one chimed about it or said they used it before.
On LS1tech.com several of the f-body guys said they used it and loved it, so I guess I will be going with that coupled with the NOS prgressive controller, still not sure yet.
I asked Allen if he recommended it with his tune, but he hasn't replied as of yet, I'm sure he's been very busy with that last GP. There was alot of people in on that one
'01 Sierra 4.8 SCSB
4.10, Eaton posi, Nelson tune, 160 t-stat, K&N Intake, Magnaflow catback, Vig 3200, Transgo+billets, 100 NX wet shot