Yeah the engine in Tim's car was a 427 inch SB with fully ported Edelbrock heads. It had a small cam and a small carb since it was a street driver with 2.94 rear gears. It made more torque and more hp than a Viper engine so that was good, but it wasn't at its potential. His car really needed a 5 speed transmission. With a 5 speed he could've gone with deeper rear gears and we could've put a bigger cam and carb on it and moved the power curve up a bunch. It was just super hard coming up with a combination that would pull 160 mph on the top and still be able to drive to work.
He did beat a ton of cars at the track including Vipers, Vettes, etc. but they were not driven by skilled drivers. The skilled drivers in good cars were a little tougher to get around, especially in club racing where fender rubbing is strictly prohibited.