[Drsagacity]

Originally Posted by SDG23

I know this has been covered, but my goal is 600 to the wheels, nothing crazy but a decent bump up. Will the stock SS fuel system hold up? I hear a lot of numbers but in general I hear 600rwhp is about it for the stock SS fuel system, does this sound about right? Thinking of going with a Maggie 2300, I already have a ported TB and RotoFab dry intake so I'm thinking an 85mm pulley should get me there.

Yep. You are right on the number. You will be between 550-600whp at 7psi.

[KingLT1]

Originally Posted by SDG23

I know this has been covered, but my goal is 600 to the wheels, nothing crazy but a decent bump up. Will the stock SS fuel system hold up? I hear a lot of numbers but in general I hear 600rwhp is about it for the stock SS fuel system, does this sound about right? Thinking of going with a Maggie 2300, I already have a ported TB and RotoFab dry intake so I'm thinking an 85mm pulley should get me there.

I suggest to upgrade the fuel system. 570-600whp is about Max on 93 depending on dyno. I wouldn't want to be at Max or squeak by on these engines. The issue is rail pressure...especially with PD blowers. They require more fuel on the hit compared to a Centri setup...which can cause a lean spike from rail pressure drop.

[DiGiam]

Originally Posted by KingLT1

I suggest to upgrade the fuel system. 570-600whp is about Max on 93 depending on dyno. I wouldn't want to be at Max or squeak by on these engines. The issue is rail pressure...especially with PD blowers. They require more fuel on the hit compared to a Centri setup...which can cause a lean spike from rail pressure drop.

I agree. On the dyno you can get by but on the street it may run lean. This is probably the number 1 reason why these LT1 motors pop. Tight ring end gaps and lean condition from an inadequate fuel system.