My opinion the cheapest rwd sleeper to hot rod with a classic look is the good ol 78-90 caprice (2 door or 4 door). Get a junked 92-96 caprice or impala ss for disk brakes, --upgraded rear and other suspension parts and you are handling and stopping good for cheap. Then you can put the $$ in powertrain. Cheaper than doing the same for a g body and caprice parts are more plentiful and damn near all those parts are compatible from 78-96.
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