Engine Question

Oh for sure. It wasn't stock, but at one point I had our iron headed magnum 408 with 375 hp in my dart. Had an "off the shelf" B&m yada yada stall converter. Couldn't even get it into the 13's. I knew the converter was junk. Slapped in an ATI tree master 8 inch, BOOM 12.20'S.
That's a great testimonial for a good converter if ever there was. Yet, you cannot preach it to a lot of people.