408/ 904 trans

I had some similar concerns we had the low set in our 340/904 set up ran well,built the stroker and bolted the same trans up to it with our 28x10 and the thing is hooking so far but only had 4.30 8 3/4 too much rpm through trap switched to 4.10,3450lbs with driver,don't think we are making your numbers in hp 10.66 best so far 1.42 60' with a little too loose imo 8" race converter.