i just finished reading the jan 01 issue of MM&FF &they made 475hp@6500 & 422lbs-ft@510 with the trick flow R series intake. it is made for higher rpm's (2500-6500). it improved hp on their motor by 25 hp at 5500rpm over the gt-40 but torque fell 25hp.
they had afr185 heads, comp cams xe 292r cam, 10.5 comp, 70mm t/body, 77mm maf &36lb injectors
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