1992 Dodge Dakota 5.2 Magnum advice

In regards to the torque the beer keg gives. About 15 years ago, the dakota club I belonged to had a dyno day. I have a 97 5.2L with the original MP r/t cam, 1.7 rr's, shorty headers and the MP MPI single plane intake with the hypertech tune. Numbers were 247rwhp and 265 rwtq. My friend had a 93 with the 5.2, basically identical setup except he had the stock intake and MP PCM being OBD 1. IIRC, he was down 30 hp, but gained 20 tq. Some people have shortened the runners on the kegger to give a little more RPM, but I have not heard what loses that may cause on the bottom end.