thinking this is the next upgrade i mostly take trips up to the hills tow the 20 foot seaox here and there maybe a trip tp canada to visit cousins.

The rv275 is a good and economical injector. They really woke my truck + an extra 2 mpg. They are a 40 hp injector. If you are looking for bigger injectors I will defer to those that no more about them. I am very happy with mine and they are easy to install.

If you want big get some from contagious diesel. Lee can built you 7x.008 ( about 75hp) on up as big as you want. They idle great and perform with little smoke, his prices are unbeatable.