[69 longhorn]

My experience with unleaded fuel on leaded heads/stock seats,is that if you are running around town,no long high speed hyway trips/heavy hauling.....you can run many miles on the street without the hard seats. I ran a set of 492 castings 30,000 mi on the street,then sold them to a bud,& he has another 10,000-15,000 on them & no troubles! These are pretty much all city logged miles.......with a little weekend racing(no addatives)...........69

[This message has been edited by 69 longhorn (edited May 12, 2002).]