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Hello everyone, if someone could please help that would be great. I just installed a high output 160 amp alternator cause the other one was going out and it was at 10.6 volts. So my new alternator is now pushing 14.47 volts. My battery is a optima yellow gel cap and is also working fine pushing 12.4 volts. I seem to be very confused on whats going on. I have to jump it every time and even when I turn the car off and wait 5 minutes, it wont even start again, i have to jump it. I have no leaks and there is no smoke. I have an intake walbro 255 pump with 720cc injectors. Hks twin feed fuel rail and fuel regulator. Thats my fuel set-up incase there might be a problem there, but i just cant seem to understand why the car wont even start. Any help would be greatly appreciated. Thanks.
 

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Test your battery, just because it has 12v doesn't mean it has the needed cranking amps. Try starting it with another battery installed.
 
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