I've posted it so many times I'll just briefly add my two cents worth.
A proper PACKAGE will run with no troubles. I've ran tunnel ram 2x4bbls more than anybody I know, on daily driven work trucks, daily driven cars (the WIFE drove) and numerous high performance cars.
Not only were they responsive, trouble free, great cold and hot drivability, they also had power brakes on everything I built, some had mild cams, some not so mild, and all my stuff had to pass AirCare emissions testing.
Too many misconceptions about tunnel rams out there IMO.