If you blow your rear end, you can have my GSL rear from my 84. Its got 120K on it. I have some moser axles for the stock rear end that converts it to 5 lug and also a respeed rear brake conversion kit that I didn't use on my FB. If you want those pieces just let me know. You can go mid 11's on a stock rear end with axles and not have to worry.
That 8.8 that I put in my FB works awesome. It weighs probably 80-100 more lbs than the stocker and probably robs more power but I like launching at 8K

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