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Discussion Starter · #2 ·
you could swap engines out put a 5.7 in it. You could just hook up so nitrous up to a 125 shot with out hurting the engine.

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"more HP from a caprice 4.3L lt1 engine?
whats the best option? swap rear ends? engines? just a new whip?"

You could try swapping that 4.3 L99 for the 5.7 LT-1

4.3 is NOT looks the same under the hood but its a weak motor in comparison. Once you have the LT-1 if its still not enough for you, try diff gears and have your computer programmed for those gears and other items such as firmer shift and higher octane fuel etc....
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