I have 87 conquest broke off spark plug, got new head no auxiliary valves, T3-T4 turbo kit, GM MAF sensor, cone air filter and MAF Translator gen1. Got it back together ran good but had turbo leak look like return pipe, took off and back on a few times still leaked called Top End Performance they said turbo was bench tested and couldn't be turbo leaking. After giving up for a while and trying again a few times over the years when I retired took off turbo and rebuilt it, had a broken o ring in it

Best way to prime oil pump 

Hello everyone, I was wondering if anyone has heard of and recommends the brand "Kinugawa" to upgrade the stock turbo core?