NGK. And coppers or something cheap to get a resurrected car running well. I'd be pissed fouling out $5 Bosch +4s.. but I wouldn't buy them. And you will foul them out. I went through 2 sets of Bosch Platinum ($.99 each) before my car ran right. +4s ran like hell on my 'Vette, and on a friend's 240sx. I use NGK Iridiums for my KA-T. BKR-6EIX, which I'd also recommend for a high hp NA car (I think that was you *shrug*) because they're one step colder than stock.
-Jeff