HELPING THE OTHERS REALIZE THE ADVANTAGES OF 4AGE 20V

The blacktop has lighter internals that are also weaker, but it's kind of more quickly. No hurt if you are not executing any huge mods, but any compelled induction and you'll be needing to uprate the blacktops internals.The 5 valve head is Toyota's reward towards the 4AG after the 4AGZE went away. With the extra valve and unbiased throttle bodies-