Thanks good information!
Did you mention what your 60 foot times were?
When we had the car at Woodburn in 2008 the finish line RPM was over 7000 so I was short shifting which really didn't make a lot of difference. At that time we were considering a gear change but when the cylinders cracked due to over boring to 4.5 {the machinist didn't sonic test the block} we had an engine build to deal with. Possibility the converter / Trans was causing slippage? Once the car is back together and I get things organized the 1/4 mile track will be next.