Re: Thinking about the 5.3 swap in my 86.
You aren't going to see big power out of the 5.3 without either boost, or major internal/head work.
It will be a solid motor that will get you from A ---> B at the speed limit and allow you to pass as needed. You want a speed demon, get an LS2.
S&P sells a nice set of headers with O2 bungs.
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