I'm getting ready to order a set of Don's injectors and a cp3 and was wondering what the biggest flux injector I could go with and still be able to tow a trailer if I need to. The truck is mostly used for sled pulling so I want as much hp as I can get but I don't want so big that it kills the driveability when towing. If any of you guys are towing with flux's let me know what size and how you like them. Thanks