I recently bought a 77 280Z in near mint condition. However, it will need new bushings and shocks. It has Michelin X 195 70 HR 14 tires (all season) with 3-4 K miles on them. On the highway, it tracks perfectly and has a nice solid feel. In the city, the steering effort seems very heavy. Heavier than the 78 280Z I owned from 78-86 (based on my memory). Nothing is binding, all is smooth-- just very heavy. Here are my questions -are the steering gear ratios different between a late 77 and a 78? -are the Michelin X tires too sticky? (my 78 had Michelin XVS and the original Bridgestones)-- what tires are recommended?? -will bushing upgrades to suspension and steering mechs help? -is my memory faulty-- were these always really heavy steering cars? (hence the addition of power assist in the ZXs) -do I need to work on my upper body strength? All help and thoughts appreciated!