Lighten
GA Diesel Mafia
- Joined
- Jul 17, 2010
- Messages
- 20
I have an tater built he351 67/67 over a s475 (96/1.32) on my truck and all i can get out of them is about 65psi at the intake horn. With about 30 coming from the 475. Drive pressure is 80 at WOT. The 351 has one of SDs spring gates on it and i have tried different springs, adjustments, i just cant get the drive to boost ratio any closer. It runs good has a kinda heavy haze at WOT i feel like it has more left in it. Do i need to change the secondary? Will it live at that drive pressure? Its a DD and iam gonna try to get it dyno tuned soon i hope. Thanks