I have got a 99 2500 that I would like to put injectors in. I've got a VA, BHAF, 3" straight pipe and gauges. The part I'm worried about is the clutch. It is South Bend MU 0090 Rally, its rated for 350 hp and 700 ft. lbs. with light towing. I tow very heavy at times and don't want to spend money on another clutch. What can I get away with for injectors? I'm thinking RV275's or maybe a 60 horse injector or maybe more. I'm not worried about exhaust temps, but would like to get as much power as possible.

 

If you do lots of towing, stick with the Mach1.6's(90hp)like me, they run cooler egt's, and get very good mileage, and have great power. You can use your stock(hx-35) turbo with no egt problems, but you may have to modify wastegate to get more boost to keep egt's cooler. Your clutch may have an issue afterwards though, trying to hold all that extra power.

 

If you don't want to upgrade your clutch then get a set of 275 injectors. Nice power increase, nice mileage increase, won't tax your clutch/egt's/or fuel pressure.

 

i agree with blue i have a friend that ran a va and a set of mach 1.5s and pulled with his in a 00 with a six speed and he lost his clutch a few months after he put the sticks in . so if you arnt ready for a clutch go with a set of 275s they are cheep and you can alway resell them when you are ready to set up to bigger stick cause . you will later want more.

 

mach 1.6s are a dream and your clutch will not like them my stock clutch started to slip with in a week but my SBC holds good and i really like the power