5.3 of that era are very prone to piston slap which can be annouying.
Also if you are putting engine in a older truck, the bolt partern on
bellhousing is not the same as a 350. One more thing I do agree on
using stock intake setup is because that helps the engine a lot. The
only thing magical about the 4.8, 5.3 and 6.0 engine is that they came
with tuned intakes which is something that 350 never had even in
Vortec flavor. If you want to build with a carb you are still better
of with a SB 350 still a lot better option to use because money is
about the only limit as to what you can do with one. Morale is, if you
realy want a 5.3, use the stock intake and injection, if you realy
want a carb, start with a true small block.
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