Fuel tank construction

[makoshark]

Anybody have any info or insight for me for building a gas tank for my 67 camaro. It`s LS1 powered, fuel injection of course. I can use the new stock tank I have for the dimensions, but I need some info on how to do the baffling to keep the fuel pump from starving. A friend that works with stainless steel sheetmetal told me he could build a tank, free of charge, if I could give him all the design measurements. Thanks