Any problems with using a hi amp alternator (say 140 amps) with relatively stock battery (around 700 cca)? I thought I read somewhere that if you upgrade your alternator you should upgrade the battery as well. The stock amp on mine is 94 amps, I think (94 A is what's stamped on the case). Any thoughts? I ask because a 94 A is about $150 here, and a Powermaster 140 A is right in that same range. Don't really need the extra amps, but for the same price, why not?