Front End Suspension, NHRA Rule Question

The stuff from Alf front and back are hands down the best pieces you can buy and use for an Abody GM. Everybody with an Abody drag car uses these pieces.
If you are on a budget for the rear suspension, an Anti Roll bar from BMR or H&R, along with adjustable upper arms and no hop bars with multi mounting positions is the way to go.
For the front, del alum bushings with the extended length upper balljoints is the way to go. Alf sells a kit with all that stuff, and controll arm shafts that works great.