Tilleys vc valiant has been into the high 10s out here in oz a few years ago now so that means he can't run it anymore without a roll cage. It has been around a long time and was always built as a street car definitely not for drag racing with stock suspension and runs 2.92 or 3.23 gears in the rear. Runs smooth as with a great programmable EFi setup.
A friend of mine has a valiant , same model as the tilleys turbo slant out here with a turbo 318/390 setup in it and blow through carby from Brent miller in the USA. The car is so driveable and puts out around 600hp at the wheels with ease. That's from a motor that naturally aspirated would be putting about 350hp to the wheels. It has a single turbo with custom 4 into 1 pipes with a crossover from the drivers to passengers side. There are a few videos of it on YouTube if you type in turbo vc valiant.
They are an awesome idea, very driveable and tame until you put your foot down!