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How many cranking amps for a swap 3.4?

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Old 08-18-2012, 04:21 AM   #1
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How many cranking amps for a swap 3.4?

I have a nice Red Top Optima Batery, and the truck runs perfect. I have no extra lights and, in fact, I'm switching all bulbs to LED to decrease the load on the electrical system.

Now, I'm on the hunt for a Jumpstart-and-Compressor Portable Power and Air system, and these come in different ranges of cranking amps, peak and constant. I live in Puerto Rico, and it really never goes below 75, so engines never really need to crank in a cold weather. Since, of course, I'm looking for the cheapest working option, I need to know how many cranking amps are needed to turn the engine so I can buy the correct Portable Power system. Any ideas?
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Old 08-18-2012, 10:25 AM   #2
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Well last time I tested my battery, it said it was bad and only had about 300 CCA but my truck still starts perfect every time, that is on a 22RE though.
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