The car in question is a 97 Ford Thunderbird. It has a fairly new (less than 2 years old) 130 amp alternator. Optima redtop battery under the hood.I will be running my PG Ti 600.2 and 800.1 off of it. Assume that I have the big 3 done (doing it this weekend or next). Will the stock 130 amp unit provide enough charging to keep up with these amps or should i splurge the money and get a 200 amp unit?