My Jones Cam Recommendation
Unsure how .050 or .020 are deceptive. They are a tool for mapping and comparing the lobe ramps.
I.e. 2 cams have the same duration at .050 yet different durations at .020.
I agree. However, it’s also everything before, in between & there after as well. For most guys, I’d have to guess about 99.999%, they’ll never look or care about it. Wyrmrider is splitting hairs on it and IMO, while he has a technical point of correctness to argue from, for the other 99% of the people, it’s just more bullshit in the cesspool to physically wade your fingers through in search of something you’ll never know you had or not.
You will have a much better and easier time figuring out which of the otherwise 3 identical cars I give you to test drive has a 112-110 or 108 centerline cam in it, during a 20 - 90 mph test.
You’ll have a super easy time figuring out test two of which carb I have on top of otherwise identical engines.
Is there a better power curve in different centerlines? Sure!
Is there power between a 750 & a 950? Sure!
If you keep at it in all the little things, it will add up. No doubt.
For your specific mill, you have to decide if it is worth the effort of pulling your hair out on it.
On your daily or mild hot rod, perhaps your S/S build that rarley see’s the track, will you care? Maybe so in your head, but you won’t really know the difference.
When you take science to the engine and build the most power you can into it by slicing and dicing every last bit of data and optimize it to the max making sure your getting the most bang for your buck, fear not, there is some shlep throwing a left over engine parts engine together that’s going to hand you a pasting at the track.
Seen it to many times. BTDT
IF! You are racing heads up, do so at every turn take advantage of every tech feature. Otherwise, don’t give yourself heartburn over it. There is always a bigger dog.