I took the original silvertop manifold and hacked the crap out of it, I cut The full ISCV ports off the highest and began rounding the runners till I acquired to this. Probably the most time intensive Component of the swap. I used to be considerably unwilling about doing this https://juliusxpgwn.worldblogged.com/39284046/blacktop-20v-4age-fundamentals-explained