I'm running 8 psi on a 9:1ish motor in a Ford 5.0L SEFI, World Products Windsor Sr. iron heads, GT-40 lower intake, 2031 cam, headers, etc. Folks are telling me to run SPOUT out and set the timing to somewhere between 20-26 degrees. Is this a good suggestion and what specific value is a good starting point?

Additionally, I've got a part-throttle stumble, is this related to the MAF not being clocked properly? It's a C&L 76mm unit. What's the "clocking" procedure?