This is what comes up on Wallace caculators for the qtr. mile, useing your spec and estimatining the HP to be 1200. This is without figuring in converter slippage which could be as much as 5%, i was useing 7500 RPM.
Zip.
1/4 Mile ET: 8.16
1/4 Mile Top End Speed: 173.46
Ideal Ratio: 4.12