Anybody have a recommendation for an NHRA Approved bellhousing? I've seen both a Hays and a Lakewood, just wondering if anybody has any experience with installing one on a Super T-10. Also would be interested in a used one if anybody has one they don't need. I have an 11 inch Centerforce clutch going in my 68' and need one soon. Any horror stories pertaining to installing either one? Thanks.