[davezinn]

i know that cars for Pro Stock were required to be only so old, so i understand why some cars were "updated" with later model sheet metal or trim. what about Modified Production? i'm curious too about the match race thing, were those cars classed or what is pretty much a heads up run what 'ya brung thing?

i'm also interested in when the tires started getting bigger and when did racers begin to tub and modify the rear springs and so forth for bigger tires. did this too happen around 1970 with the introduction of Pro Stock?

sorry if it seems like i'm asking some funny questions here. i'm 36 and wasn't around for this stuff but i'm very interested in it and want to learn about racing from the 70's and 80's era's and the cars, parts, modifications, etc.

Dave