I am in the process of getting a 78 280Z road worthy. I have done the interior in a black leather and it looks great. I notice that the cabin is a little leaky (water). I put a sunroof in it - maybe a mistake here in Florida, but I had one in my 72 240z and liked it. The engine just doesn't seem to be running right yet - it's like it isn't 'breathing' well. It seems sluggish when I think it should be accelerating faster - I'm not racing at lights or anything, but when I step out to pass, this baby should get right to it and it doesn't seem to have that zip I remember the 240Z having and I am expecting a little more from the 80. Any suggestions for getting more performance - even some performance out of the AC unit? The old 'squirrel' inside the fan may be weak. It doesn't move much air at all. Has anyone gone to a local AC place or do we need to get the kit from Motorsport? Are there any inexpensive chasis upgrades? Sorry for so many questions on my first post. All help is appreciated. Thanks, Jeff