I've had trouble free enjoyment with my Rev n ator on my stroked small block. Somewhat stealthy but no 100%. Very simple to use rev limiter. Here's someone's post and pic on FABO. They also make a black module.
I am not as worried about stealthy as I used to be. All I did was run a nice shorting wire in the ballast resistor... and except for maybe one extra wire out of the dis you cant tell.
