suprf1y (Mike) mentioned that his cams (he has economy and performance grinds) are made to work with his gears. I know this because it has been proven over and over in the Metro/Swift community. The Delta Cam regrind is supposed to be a stock "Metro XFi" spec'd camshaft, so if you have a stock Metro XFi and want to install an advanced timing gear from 3Tech, you can and will get similar results from the mod regardless of what cam you are running.
I do however recommend using
3Tech Performance parts when planning on a rebuild or upgrade.