I'm running the honda spacers on my 78. I purchased the spacers about 3.5 years ago from SkultePerformance. They cost about 200 bucks. I had them made with 40+ offset. The rims are 18x7 and they came off my Acura VTEC. I couldn't sell the rims for what they cost me so I put them on the Z. I have 215/35/18's. I also cut my springs almost 2", The ride is a little rough, but not too bad, Here's my link tell me what you think... http://members.cardomain.com/slozee Paul