best manifold for boost on a 5.3???

[kerrige]

Initially 500hp at the wheels. Yes boost is a measure of restriction. The reason I started with a boost setting is to c what injectors and pump would be needed. I know dbrods is pushing stock 5.3s to 24-26 psi. So my ultimate goal would be 700hp at 20psi. To start I want to maximize my walbro 255lph pump and 42lb injectors.

Dbrods has a mechanical pump.
I believe your 42lbs will struggle to make 500hp. The 255lph will probably have a ceiling of 500hp before you see a drop in fuel pressure. I know with a boost a pump and 60s a build struggled to keep idc under 110% above 500hp. The 255 will help the 42s stretch it a bit, but I think 450 will be the safe limit.

[GraniteBlueNNBS]

Thanks for the input guys. Ill push what I got to it near limit and learn to tune that combo then step it up from there.