When it comes to these cars, I only use high-quality brands like FAI, Frii, and Peirburg. If you're replacing the chain, FAI offers a comprehensive kit that includes all the hubs and bits, similar to a master kit and oil pup chain kit. I perform engine refreshes frequently, and I always take the head and sump off the pistons, swap out the oil rings for better ones, and use FAI for the labour and parts. If you want to see how my previous refreshes turned out, just type in "mike1967 refresh" and you'll see examples of what I've done.