Hey Gnarly,
Have you looked at the Crower cams? Crower makes high quality stuff. Some interesting grinds here. Notice the wide LSA for EFI vs. narrow but requiring high compression for carb:
https://www.crower.com/camshafts.html?cat=1068
Hmmm, and I just went and looked at the Schneider cams. They have wider LSAs for the EFI applications vs. narrower for carb, too.
Thing is, there's no reason you couldn't run the wider LSA in a carb'd engine. Spreading out the lobe centers increases vacuum and idle quality and decreases overlap. It tends to flatten the torque curve. Honestly, I'd rather have a fairly flat torque curve with more torque down low than go for peak torque and give up torque down low.
"Area under the curve" is where it's at for a truck you drive a lot.
Yes, I've looked at the Crower cams.
I agree that the increase in throttle response in a broader RPM range is better for daily driving. And for me its between 2500 and 3500, with a need for added HP at 4500 when I needed to down shift on long up hill grades while I was loaded down for a 4-day week end event. Since I had a Marlin Crawler, the issue with torque didn't really matter to me because 98% of my 4-wheeling was rock crawling. Some long steep hill climbs and the sand dunes is where I missed that upper RPM juice and would love to have had another 20 HP!
The Schneider profiles are very interesting and the difference in LSA for carb vs EFI makes me really curious about what they know.
Gnarls.
