I am about to purchase a '96 355 Spyder with 22,000 miles. Before finalizing deal, any major issues I should be aware of? Was the valve guide material in fact changed for a car made in Jan. '96, or am I looking at the same potential problems the '95's had? Current owner said he has not done valve guide work yet, and has not had any problems. He did have to replace both headers, so will this be a problem for me in near future possibly? Car has complete records, is very clean, 2 owners only. 15k svc. done at proper time. Any advice would be greatly appreciated. BTW, I am not new to Ferraris, having owned 308, 328, and 348TS prior.