Correct Distributor Caps

From Mark:Hello A.J. , This looks exactly what I am looking for . John had mentioned item DR108 and this has a number RR109 which is close enough . The supplier I spoke with also gave me these numbers . Which he called long numbers which match 1838131 and 1838133 . I guess we should record this for future members . I still want to check the firing order on the cap . I do not know if it makes a difference ? Thanks very much , Mark