Hi, I just got my engine zc checked(compression&leak down test) before i go forced induction and found out my #1cyl has a leak down of 70% so im looking to rebuild, what parts engine should i look to up grade to for a strong engine, im looking to get a jrsc or turbo(6-8psi boost) in the future, are there many upgrade parts available for the zc ? should i port & polish, any help would appreciated