This car is factory stock. Rode in it at 11 years old have owned it since 15. I am mid forties had added everything to it myself. It was stock to the oem air cleaner have all parts that were removed. Had to pull heads broke a spring found out it had 4 line valve keepers triple springs. And huge valves as big or bigger than a set of 202 small block chevy . I was told they made these as grudge cars to show chevy that 1 hp/cu.in. was a serious understatement for what it could do. It was also referenced as an ls-6 killer. And it has done that numerous times. Its no buffalo and no story i have it it sits here all number matching. Back in the 80's i broke a fork in trans. Took it to local shop he said it pulls up big block superbird with altered colum gear for small block. Cost alot to fix and special order to get oem ratio. And the hurst casting on trans being permanent baffeled them. But also was told later that is a way to tell its authenticity. How many a833's had that ? Cant unbolt it. Its a part of the trans.