Alternator suggestions. 165 Amp?

[70chall440]

I run 120 - 160 amp for EFI cars, currently running a 150A on my 5.7 in my 71 Charger. This came with the Holley mid mount kit and is recommended by them for the terminator X max system. While its true that most cars are not going to draw 150A the stability in current at that point is required with EFI and some ignition systems. Another way to look at it, while your car may never draw the full 150A (or more), it does not hurt you to have it however the opposite is not true (not enough power is detrimental to electrical components and reliability).

 

[68 Sport Satellite]

I run 120 - 160 amp for EFI cars, currently running a 150A on my 5.7 in my 71 Charger. This came with the Holley mid mount kit and is recommended by them for the terminator X max system. While its true that most cars are not going to draw 150A the stability in current at that point is required with EFI and some ignition systems. Another way to look at it, while your car may never draw the full 150A (or more), it does not hurt you to have it however the opposite is not true (not enough power is detrimental to electrical components and reliability).

I'm also reading this on other sites that may be considerations:
Many say 140 amp ones will put out less at idle than say a 100 amp version. You need to output curve of the alternator to really know but it is a general rule.
Another side effect of the high current alternators is you can get belt squeal at startup when it jumps into high charge mode.

 

[Unkle Krusty]

I have been reading that 150 amps running tnru the system, may have problems. My guide, other than boat wyring, is a book called Living on 12 volts. It is scary reading, and the subject is a lot more complex than I ever imagined.
In short, too many amps thru too small of wyring, can be a problem.