First time down the track

Describe your 450HP build. Many overestimate their power due to no fault of their own. Some are sold 400HP motor to find they are not all that.
10:1 compression
Forged KB pistons
Ported Cast Iron heads 2.02/1.60 valves flowed at 280cfm average between all runners
.510 .510 cam 244/244 at .50
Edelbrock RPM Air Gap with Holley 750 port matched to the intake, not gasket matched
Headers
All MSD ignition
20* initial timing
40* total timing