ENafziger
New member
- Joined
- Oct 22, 2008
- Messages
- 843
What boost #'s are typical of the he351? I'm looking for a decent stock upgrade for the tired H1C on my 93 d350
Depends completely on what your fueling is. When I swapped my H1c for a HE351CW, boost didn't change a whole lot. With stockish fueling, ~ 20 psi give or take a few. With pump mods, maybe 25 - 30 ish. With larger injectors, more than 30.