Stocker Cam Lobe Profile ?

[Aubrey N Bruneau]

After splitting one more Comp Cams tool steel retainer on an intake valve, in Mission last weekend... I think maybe I FINALLY get it....
The components being actuated by the intake lobe in my engine, cannot be properly controlled over about 6500 RPM, without inconceivably high spring pressures.
The exhaust is fine. 200 pounds seat does just fine.

What I am learing, is that there are torque engines, IE, Oldsmobile, Buick, etc ( running to MAYBE 6400-6500 RPM through the traps )... and the are RPM engines, IE, small block Chev / large port BBC Chev, etc. ( going through the traps above 7500 ).
The torque engine can make use of the EXTREMELY aggressive ramps of the "dwell" lobes... knowing that valve train control does not become a factor in the upper RPM.
The high RPM engines require more gentle ramps, which often tranlsates to longer durations... which ends up being a good thing because the duration is needed in order to draw the torque curve up a bit, so it's most effective in the higher RPM engine.

The 409 is regarded by many, including my man at Comp Cams, as a torque engine.... yeah, phrases like, "oh that ol' 409 made a lot of torque" !
sure.... compared to a 283 2bbl, I quess it did.
But it's NOT A TORQUE engine. I've known that for decades.
Unfortunately, it's also not really an "RPM" engine either.
Runs hard in production form, and that's about it.

This puts me in an awkward place for cam lobes. I need a more "RPM oriented" ramp... but no so much a large port 427.
The lobes don't seem to exist in the cam world. I've been to Bullet, Crane, and Comp.
I have a "distributor" account with Comp, so, I'm trying to deal with them.
In response to an email I sent to my guy at Comp, in which I described in extreme detail what I had, what was happening, and exactly what I am looking for in a lobe, I have been informed that they have "created" a new lobe for me.
Now, before committing to all this, I was hoping that a few guys could advise me if I seem to have the right idea.... or am I all wet ? ! !

thanks for listening
I'm sure some of the responses will have words that I can't even pronounce ! !
( I often say to friends that "These Stock / Super Stock guys employ technology that makes the space shuttle look like a hay-baler ! )