New roller cam...

Spend the money and get Isky or Racer Brown Cam and lifters. There are other good guys, I just don't know them. Johnson lifters are made in the USA. Search eBay? How much money do you save when engine parts fail? I run solid cams, never a problem, but I get everything close and rev it to at least 2,500 to 3,000 rpm to break in the cam and engine. I run 20w-50 Valvoline Racing or VR1 with a good filter. I have street cars, I don't have to have the most aggressive lobes that take spring pressures over 300# open. It all adds up, do some more research.