Please help / antifreeze leak

Thanks for all the input and information. I just got my computer working again. I'll tell you if it not one thing or another lately, but I wanted to thank you all and give you an update on this.
I spoke with the engine builder who backed what he built and told me to drop off the car and he would stand by his work. He has re torqued the head and the leak has stopped. I picked up the car today and drove it home from where his shop is which was about fifty miles from my home and when I pulled it into the garage and looked under the car it was dry without leak. Problem solved. Hopefully I will be driving the car to the Rockingham Mopar show here in NC next week. 8)
P.S. Does anyone know where I can get a set of gears for my 7 1/4? I'm looking for 3:23 or 3:55, and to find a sure grip unit for it.