Trick Flow 240...

Gdub310 said

All that sounds great, but how much better than stock can a fully bolt-on cylinder head be, and exactly which segment of the big-block Chrysler market are Trick Flow’s new PowerPort 240 aluminum castings intended for? The company’s in-house test engine mule speaks volumes. “Our new big-block Chrysler heads flow 334 cfm on the intake side, and 262 cfm on the exhaust side. For testing purposes, we built a .030-over 440 with 10.5:1 compression and a 241/246-at-.050 camshaft,” Mike Downs of Trick Flow explains. “On the dyno, this combo made 620 horsepower on pump gas. We feel it represents the type of combination many Mopar guys build, and obviously there’s the potential for these heads to support even more power by running more cubic inches and a bigger cam.”

Source: Trick Flow PowerPort 240 Wedge

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The HR article is a mess, the cam specs are different than the TF specs. Andy F built a 470 that knocked out 700 HP with the TF240 heads, that is well documented on HR Mag.