The cathedral ports are one of the reasons why it does make power. It is the equivalent of a high port cylinder head.
The 2V and 3V cylinder head designs are better. The 2V even has 7mm valve stems, and the 3V has 6mm valves. Lightweight...
How about a 340 RWHP/346 RWTQ 3V that drives like stock on 87 octane? Just some ported heads and a few bolt-ons.
-Hitech Motorsport ported heads
-Long tube headers
-C&L CAI
-UD pullies
-High flow cats
-Hitech Motorsport 87oct tuning
-Stock cat-back
-Stock cams
-Stock intake
-Stock 55,000 mile short block
-Stock TB
-Charge motion plates still in place, and operating as factory.
This is all with 281 cubic inches.