Did you get a new oil pump? How abut new timing chain and guides and rubber teardrop chain tensioner?. Did you use the paside lower balance shaft chain guide, and did you clearance it against the lower loop of the chain? Did you use a blank round bearing in the dside balance shaft front bore to block the oil port that fed the bshaft?

Did you at least pull out the oil pressure relief piston and measure the spring?

Not responsible for advice not taken...