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Yes, another thread on oil.
Take offs--synthetic is overall better in all ways. Even good for flat tappet cams. Race oil in street cars? Not good unless you change it after just a few hours of run time.
Basically dont use a 10-30 or lower in a flat tappet motor....wonder why all these Engine builder geniuses around here keep smoking cam lobes on lifters and fuel pumps.....but it synthetic, its the best...not really.....go smoke a rainbow...Its the ZDDP