Aloha. Will be a lot of trial and error, we still learning. We keep the heads on the 440 to a 1976 stock comp. but good steel crank and forged pistons ,so we could get a good boost. If that make sense ? Haha
Just about got it dialed in and the turbo leaked some oil . So off it comes. Hope to install rebuilt one this week sometime. Aloha & Mahalo from The Big Island of Hawaii, C