tf posted dyno numbers,but did they show the motor combination anywhere?
440 Mopar 4.350 x 3.750
stock crank , Eagle rods, JE F/T piston
10.5:1 Compression
Comp 23-713-9 H/R cam 242/248 .549/.544 @ 106
TFS Mopar 240 cc heads
TFS-16094-16 springs
Comp 1621-16 rockers
Edelbrock Victor intake
Hooker 1/78 header w/ 3" Flowmasters
Demon 830
Where did you get that info? That's not quite what is quoted in HR mag.
"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 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."
I'm not saying you are wrong, just curious about the source of that data. Thanks, Steve