Regardless that the Blacktop head contains a far more open combustion chamber (see “Head combustion- chambers”) it still has an increased static compression ratio (see “compression ratio”), this is only due to the piston structure. The Silvertop piston features a quite small dome with two deeply angled exhaust flycuts, two https://paxtonjqopn.blogmazing.com/30723960/indicators-on-4age-20v-turbo-engine-for-sale-you-should-know