FULL BOOSTED RESULTS-TWIN TURBO, JUNKYARD, SBE 351W. How much power can you make with a junkyard 351W? Stock bottom end with extra ring gap, good heads, cam and intake with a pair of CX Racing 76-mm turbos. See what happens when we add 23 psi of boost to the stock crank, rods & pistons. Junkyard motors with boost rule!!