Need help with converter

I gave all the info about my car to PTC, Turboaction, and Edge Converters before i started this thread. Only PTC answered my Email. I started this thread because i wanted some info about drilling or not driling LA318 flexplates. Turboaction seems interesting because they have converters in 5/16 bolt size. Everybody jumped on the stallnumbers... thats ok. I think i need to phone them.