I have a 1991 Geo metro that has been abused for the last 83,000 miles of 183,000 so far,I have only replaced normal parts so far with the exception of the alternator last month.My fault I kept driving it for a few years knowing the battery was weak.I have headers,cam,advanced cam sprocket,MSD coil,Pulstar plugs,underdrive pulleys,milled cylinder head,stainless exhaust valves,and mild porting,my son,my friends and I can not kill this car.I wish that Eldebrock would make a dual cam 12 valve cylinder head for this engine so it will modernise a rugged efficient engine...........one more thing,the last time I loaned my car out it came back with a hard to downshift tranny now,I guess it is synchro time soon :)