That was back when the engine was a "big" smallblock. It was 440" a fair bit smaller now and the RPM is a fair bit higher these days. We now shift 2/3 at 9900ish go through the top end at 10,2-10,400

We have been racing 1/8 mile out west of late. We don't change the car from our NMCA trim for it, we run legal weight and our normal trans ratios, rear gear and converter and go through the 1/8 stripe still on the converter, which stalls at 9200-9300 if we got the stuff right.