I had no problems with Alpha N on a high power road car, but it does require a little more thought mapping. Make sure there is a high resoltion on the rpm scale, say, 100 rpm increments around idle regions, widening gently to 200, 500 and then up to 1000rpm increments or more at the higher end of the map. The same for throttle, start with a high resolution at idle and gently widen from about 50% throttle up to 100%. Race cars don't need this sort of resolution low down the map but a road car works better with the high resolution in those low map areas for idle and cruise. The map end up looking very different, mountainous for want of a better description.
Later firmwares have more features that will allow ignition advance based on coolant temp so you can now add a chunk of advance on a cold engine to help with warm up, that however is never a substitution for more air if you can, a choke cable or other actuator on the throttles for simplicity perhaps.