No, it has a flat taper cam, so I have to use a high zink oil. I can not use a synthetic oil, at all. it is what the PO was using, and I do like Valvoline. It is not so much a brand thing, more of a zink thing. The engine with the Edelbrock heads, and performance cam, needs an oil, that will not just cook off. IDK about Amsoil, but most of the oil today, is formulated for today's aluminum engines, and some are 0-20, or 0-15, or 0- whatever, and are not formulated for an older engine. Especially a 45 year old engine. My Vette, only has 72,000 original miles, and the bottom end is still OE, (Pistons, crankshaft, cylinders, ECT.) rite now, In running 15-40 in the car. Also being a L-82, 350, it is a 4 bolt main block, and red line is 6000 RPMs, not 5500 like a 2 bolt main block. My compression is 150 + PSI per cylinder. With the 3 inch exhaust, it moves a lot of air. It needs a racing oil, for high performance, or race performance engines. LOL, when you say Corvette, everything doubles, and triples in price, then add racing on top of that, and everything is expensive.