[Ryck Campbell]

Stewart,
My mistake, I thought I read 69. To answer your "First" point. The 250 was already subtracted before I divided by the horsepower. Using the example that I previously used:

heaviest 1969 Dart GTS shipping weight 3229
minus the allowable 250 -250
equals 2979
divided by the factored hp of engine / 304
equals 9.80 this is the lightest the car can be.

So for GT/DA it is 9.80 x 304 + 170 = 3149 or 3145 scale weight.

The car gets to GT/GA 3229 shipping weight plus 250 = 3479 divided by 304 = 11.44 and G is an 11 pound class.

Second: Class is determined by the Classification Guide which contains shipping weights of vehicles; not the weight of an engine. In the case that I used you could not use the Hemi hood. Even if the car was a 1968, if the car did not contain all components necessary to be a "Hemi car" then the hood could not be used either.

Third: If the car has all Hemi car components (obviously less engine) then the 3020 shipping weight would be used but only if all components are there.

Jeff, I think I answered your question above but since we use the Classification Guide ot classify cars then it's the shipping weight that we use.