R3 tall deck 426 Victor Heads

Yup left it at that been setting up spark table & VE tables on the XFI sportsman had trouble idling the advance was 60@idle & 10@5000rpm was working in reverse found the 6AL-2 had to set the input from hall effect to ECU sorted it out Richard Nedbal is going to set it up online another question is the 727 i rebuilt with billet servos ,5 plate red front ,bolt in sprag ,3500 holeshot stall ,6 pinion planetary & a A&A valve body should i use scatter shield ? steel billet front drum or both