sidewayz, are you asking me what is wrong with SFI balancers?
if so, nothing at all. they are great. they are pretty pricey (for a good one), which is why i said i would run the Pioneer non SFI unit (i dont drive the car hard). Romacs go for close to 300 bucks.
1987, LRS has a pic of the PP unit. i used a loaner install and removal tool from CSK (Checker, Schucks, Kragen). as said, you should not need impact tools for removal. soak the bolt in PB Blaster the night before, if you have doubts.
good luck.