C&C/ SP # 22

Howdy all!!! I am interested in modeling the 22 in 2.5" scale and will be using the RGS # 20 as a base to start with.... I've done a search on the 20 within this forum but haven't found anything.... anyone direct me to a good site with specs on the RGS #20??? looking for a comparison for the two engines....my SPng book says the 22 is former F&CC 22 and a sister to the RGS #20....almost a no-brainer to me in comparison but I'm sure I might be overlooking some items...besides the "blind" drivers on the #20 of course. Thanks all and thank you Don for providing a site for narrow minded people like me!