1969 Dodge Dart 340 f(stock ) specs

I was just looking at one of Paul's threads about Pure Stock. Definately less allowances than Stock. Of course they both changed over the years.

Here's one mention the '72 rules
Match Race 1972 ~ 'Duster 340 vs 'GTO 400'

and apparently a lot of tracks didn't run the PS classes in 70 and 71.
The 'Quickest' A-Body Small Blocks
You guys know about this than I do.
It's pretty interesting to see what can be done within a set of rules.
And how much difference when the rules are changed.