I'd say that with a 4 bbl intake and carb you'd be way over carbing a 3.8L that was NA and it'd be a dog. The 4.1s came with a 4 bbl, and they only made 125 HP I believe compared to the 3.8's 110 stock, and the 3.8 has less cubes. without boost to back a stock 3.8L motor up it's fairly gutless IMHO.