If helpful, I currently have a Brenspeed B326 Ford Boss Big Bore 5.3 Stroker , 9.8 CR with an Intercooled HO 2.3 Whipple at 15 psi on 94 Octane pump gas. Also Has Ford Racing CNC Ported Heads, HotRod Cams, FRPP 62mm Throttle Body, Kooks headers with High flow Catted H Pipe, etc. etc. etc.