Just curious who else has a 363 with a D1sc. Whats the rest of your combo, what power you see, what rpm, what fuel you run, etc etc etc. I'm about done with my 363 and already have the D1sc. Shooting for 800ish to the tires. Would be ecstatic with more but feel 800 is realistic. Ported Trick flow Box R, 90mm throttle body, 210cc heads, longtubes, FTI cam to match it all. Holley efi, C16, C4. Sent my D1 off to Jon Bond Performance and had his upgraded impeller installed. Flows close to 100cfm more than regular D1sc. Also using a bellmouth inlet to aid in making a little more boost. 8 rib setup gonna make a street tune with likely a 4.25 pulley just for low boost and reliable. Then max effort tune with a 3.4 pulley and see what this head unit can do. Aeromotive Eliminator pump -10 feed and return. 80lb injectors. Have a snow stage 2 Meth kit installed from the previous build. I'm going to keep it for my street tune combined with procharger sheet metal front mount innercooler.