Yo All - Am interested in putting the ZZ4 Chevy Crate Motor in my '46 Ford 2dr Sedan - Question is: With the Hyd.roller cam(.474"/.510"lift and 208/221 degrees duration) will I have enough vacuum to operate accessories? How Much vacuum will I need for the brake booster, etc.? And should I upgrade the convertor from stock? ('86 700R4 tranny/stock Camaro Convertor).This engine advertises 355 HP @5250rpm/405ft.lbs.@3500. Many Thanks in advance. Charlyg