The 274's lose mid-range torque and need lots of RPM to make power. This was confirmed by the guy over on Corral that has/had the 274's. They also have piston to valve problems in most applications. Peak power does not make a faster car necessarily. The Hitech stage II and CMS stage II lose little or no low end power and add mid-range and peak power. They
are the only 2 off the shelf cams I would consider for the above reasons. BTW they both have the sound that most people are looking for.

 

you were talking about adding cams...not a whole forged rotating assembly??

 

Im staying stock block... That was a quote from the link that JayC posted. And in the last paragraph that was what it said.

 

Here are some dyno graph to show that it doesnt lose mide range torque... What else do you want me to prove you wrong... And some people do have PTV issues but i called comp again and talked to someone who knew his stuff and he said if they are degreed properly, there will be no PTV issues.

 

dude....read better

that link says if youre staying stock block, to use stage 1 because stage 2 cams require more revs than the stock block can handle to make full potential... let me rephrase it again since you didnt understand it the first two times i said it, stage 2 cams require more rpm to make peak power, the stock block isnt capable of making said rpm.... maybe a fourth way of saying it, just incase you still dont understand.... you cant rev a 4.6 high enough to make peak hp with stage 2 cams, unless you put forged internals in it and run it to a higher rpm

and i dont know anything about what the cams do that the guy above me posted dyno graphs on, but then again im sketchy believing any dyno graphs on the net or any that were provided by the company who makes the product

generally though, bigger the cam, more revs you need to make power...thats why i switched from a 600 lift cam to a 520 lift cam for my new pushrod motor, because the heads i am putting on it wont allow me to spin to 6500...the 600 lift made power from 3500 to 6500 and the 520 are 2500 to 5500

 

I think that graph shows a pretty noticeable drop in torque below 3500.

But 3500-5000 looks really solid.

Also I know ask this a lot and get a lot of different answers what is the RPM limitation of the stock short block, neglecting valve springs.

 

WOW really dude... so tell that to EVERYONE WHO has stage 2. Stage 1 are worthless. Hundreds if not thousand have stage 2. OUR CARS CAN rev to 6500 RPM on stock valve springs, want higer upgrade... enough to make great power. Ill repeat this, YOU DO NOT need to have a car to rev to 7000 rpm to use Stage 2 cams... To USE ITS FULL MAX potential you would need a forged bottom end, but if your 500 rpm short dude, its not going to make a difference.

 

chill the ƒuck out, i was simply saying the same thing over again since you werent understanding what i was saying

go rev your stock headed 2v to 6500 consistently, ill make sure to bring you a bucket to carry around in your car so you can pick up your rods when they go on vacation through the block

 

1. Im chilled
2. That F is clever.
3. The car will hold at 6500.

 

not forever though...imo stage 2 hitechs are just right if you bump your rev limiter up some.