I had two 66/67 VC Valiants as a young lad, the standard slant 6 225 and a VIP V8, power wise not a big difference really when you drove the cars, lots of performance were available for them too, still are I think, not that they really needed them, they were alot more powerful in standard trim than the standards or hotted fords and Holdens from the era.
When looking for these search Dodge 106 also, they came in 3 variants, Ute, Wagon and Sedan, good honest car.
Baz.