Darth, The Rev-n-nator can add any where from a 10- 40 hp gain over the Chysler boxes...Orange, Chrome, Gold.
proves it everytime in the dyno challenges.

We never claimed to add 10-40 over msd,but in all dyno challenges we have equaled or exceeded msd.

Obviously, if you have a worn out motor or very low compression motor, that does not require any spark demand,you will see minimal horse power gain.
But still gaining Rev limiting feature and better run ability.