I have a '76 280Z which I bought in Nov. of last lear, it is my first Z car, following the fall of my '79 RX7 last summer. I have a few problems with it though. First, the car has a total lack of acceleration, this may be due to is having and automatic tranny, and the final gear ratio is around 3.55. It cruises on the highway just fine, but around town it does not do much for showing its true power. What are some of the most common upgrades that can be done within a reasonable price. Second, is the placement of the stock sound system. The car has a meager system in it right now, but I am struggling on the speaker placement, so I can get the best sound rom a complete system.