Going to but put a 360 together.
Rotating parts are stock. Pistons are Keith Black 107 they are about 85 g lighter than the stock pistons. Has been told balancing is not necessary since they are out balancing each other.
Is that correct?

Piston rings are sold as file fit or non file fit.
What do I need for the KB107 ?
What is the difference ?
Will sealed power rings for 36$ do well, or shall I go for perfect circle for 100$ both are with moly. ?

Rocker arm kits are sold as 1.5 or 1.6 ratio
What to use ?

Thanks all