Sounds more like a wimpy stroker. I ran my car on a dyno, on 7 cyls and the wrong plugs(shallow threads) with unmodified Dart Jr's( plugs fouled on the way to the shop 79 miles) and got 269 RWHP and smoked out the entire shop with fuel fumes lol.. I've seen 347's running over 450 RWHP when they're done right.
Needless to say, the car is at the shop getting completely refreshed.(motor)
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