I had a 71 vega with a jegs chassis ,fiberglass front end,bumpers and rear hatch,with a small block. The car only weighed 2250 lbs. I used a glide with a 5500 converter and it worked real well. I may be wrong,but I thought I had read and heard , forever, that the breakpoint was 3000lbs. If your race car weighed 3000 lbs. or less use a powerglide.If it weighed 3001 lbs. or more------------ Dont Do it !! Right or Wrong, that has stuck with me for a long time. Your Monte must be pushing 1000 lbs. more than that with a whole lot of horsepower.
Do You a rabbits foot?