I've been watchin this thread to see what people say, lately I've been using 1350's, cause I think its stronger (but I may be wrong), but in my 48 that I put togather about 22 yrs ago, I have 7290's and I've put just over 200000 miles and have only changed them once about 30000 miles ago when I was searching out a vibration, so I dont think 7290's are to shabby either. I'm kinda interested in some opinions here also