It is some faster, like a precursor to EDO Ram. (NO. EDO is NOT the same)
this was never implemented in simms, they got EDO later instead.
For the reAmiga 3000 I think you should primarily focus on making it cheaper to manufacture (while retaining compatibility as much as possible). Obviously if you can increase performance/stability while retaining compatibility with software and hardware cards then that would be bonus. It might also be preferable to replace a couple of the vintage ECS chips for something more interesting
For someone like me who can't solder for s*it and also doesn't want to spend hours searching for all of the vintage components it would be preferable to buy a complete working A3000 (inspired) modern reproduction motherboard.
You could ditch the on-board CPU and FASTRAM for a start to save costs...