I've found this to work the best for me also. But my cars tend to be more steet than anything else. International Harvester also had OEM TQ's. If I remember correctly they had electric chokes. In general Big block TQ's are richer than small block TQ's and Original HP TQ's are a better place to start when setting up a HP engine. But all of them can be made to run great. I'll also second the "two part epoxy" for the well plugs. Not saying something else won't work, but that is what I use, and have had no problems.