2 stock alts enough?

[oxsign 5,000+ posts]

I have a '92 S10 blazer and I'll be running an AQ3500.1 & an AQ90.4. I have a grp 32 yellowtop under the hood & 2 big C&D batts in the back. The stock alt is 90 or 100amps at most. I have a 2nd stock alt just sitting around. It'll bolt right up in the factory A/C bracket. Just wondering if that would be OK/enough? The "big 3" is done with 0/1, and 2 runs of 0/1 (1+/1-) from the front batt to the back.

I only ask because the extra alt is something I have laying around doing nothing. If I can use it rather than buying a HO alt, i'd be good with that, lol. Thx for the input.

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[pro-rabbit 5,000+ posts]

Naw, I wouldn't go that way.

You could pick up a AD244 alt from a full size and try that for a short time and that should help out overall, but you will more then likely end up needing something bigger.