I run one in my Dart. Do not know HP but I run 11.5 on slicks, 3500 stall. No problems at all. 4.10 gears. I do have the aluminum cover with the bolts for the carrier bearing caps. 3000 lb
Do you have a source for those covers with the bolts to support the carrier caps? I did a quick search but didn't stumble across any for the 8 1/4.
