Although the Blacktop head includes a additional open up combustion chamber (see “Head combustion- chambers”) it nonetheless has an increased static compression ratio (see “compression ratio”), this is only because of the piston design and style. The Silvertop piston encompasses a pretty tiny dome with two deeply angled exhaust flycuts, https://thesocialroi.com/story8239913/blacktop-4age-things-to-know-before-you-buy