Trying to solve an issue on the Bullet where the TB-IV keeps crapping out. I'm going to outfit both engines with the EST distributor and remove all the old crap including the 30-year old MSD 6M boxes.

While searching for spare modules last night, I can across a post on another board where the author (using the EST on a Crusader 454 - no EMC control) ran into timing issues that didn't match the documentation. He ran through watching the timing from idle through max rpm (4600) and found that timing actually increased linearly with RPM vs a plateau that's expected at about 3k.

I've seen the timing move around a couple of degrees when revving the engine above 3000 (rolling throttle unloaded from 3000 to 4000 and back) but figured it was normal operation.

Anyone see anything like this with there Delco distributors? This actually could be an advantage on top where the high piston speed may appreciate a little more advance. But I'd like to know for sure - this is for a 470 with a blower getting this right is important. The engine was dyno'd with a V6 module and currently set at 30 degrees total.