Not Ranked
I was about to make a similar point.
You're already getting about/almost 400hp out of a 331ci engine.
(assuming that you have the Boss290)
From that point on the $/HP gets very expensive.
Saw an article (Street Machine I think) where they'd supercharged a Boss260 with centrifical blower and few other mods for a claimed 400kW (536hp)
Personally, this would be way down my list - but then thats my list.
LoBelly
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