LSA Question

Just a question, I'm trying to learn about cams. If a 108* lsa is good for torque, then how can a cam that has a 112* lsa said to have strong torque? Is it the duration at 0.050 "? Again, just a question. Thanks
It is not just low RPM torque, but performance across the rev range. It is not the LSA alone either. A long duration cam on a tight lobe center will lose low RPM torque fue to reversion into the intake and/or bleeding air/fuel out the exhaust, reducinng cylinder pressure.
The 112° LSA cam can have good torque at a higher RPM range. Thhe 112° will broaden and flatten the torque curve with probably slightly lower max torque as compared to a pretty much equal specs cam with 108°.
A good watch is David Vizard's Powertec 10 youtube video that describes his 128 cam selection video. Tbhe 128 is intended for SBC engines but is close for parrallel valve engines. For SBF 127 is used. When you have canted valve heads like BBC, Cleveland and Polysphere, use 132. These get you close for your engine build but if for racing the cam should be dyno tested against others ground with the same duration and lift. For street you will be close enough. LSA can be adjusted a bit for quick off the seat, cylinderhead airflow and compression ratio.
Our old cams were lift limited by spring technology. Port technology was lacking as compared to today. And then we have emissions to deal with. To get a longer duration past the emissions sniffers a wider LSA keeps idle misfire down on a carburetted engine, keeping unburned fuel out of the exhaust. Factory cams on the new engines that have good head flow are ground with LSA's between 115° up to 123°. This provides a smooth idle, but low RPM torque tends to be a bit soggy. When you go to accelerate it does not pull until about 3000 to 3500 RPM. From there to the rev limiter they tend to pull strong. The buying public has been indoctrinated to look at HP numbers, while for a street driven vehicle torque is the important spec to look at, and at what RPM. On the street a big power spec at 6500 RPM does not mean much as you do not spend much time driving at that RPM. Now strong torque at say 1500 to 2000 RPM is more valid for 90% of drivers on the street. This gets you moving easily off street lights and lets you cruise on the highway.