70aarcuda said https://www.summitracing.com/search/brand/lucas-oil/product-line/lucas-hot-rod-and-classic-car-motor-oil/oil-volume/5-qts?N=400014+362619+4294834215&SortBy=Default&SortOrder=Default&autoview=SKU&ibanner=SREPD5 the oil you need for a flat tappet cam is available...you just have to look for it.... Click to expand...