My 89 9000 had 210K miles on it and was spotless but the clutch repair would have cost more than the cost of the car, so I let it go.
Would 20w50 synthetic end up being thinner than 10w30 dino? Would I gain hp that way? I know the oil being synthetic in and of itself is worth it for the added protection but would the higher rating end up being detrimental?
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91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior
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