TPI Specialties cat-back exhaust system.
     As is the case with any high performance engine, the foundation of one that's also emissions-legal is the block. Mike Osucha of MORE Performance began with a 1989 engine core and after disassembly and cleaning, machined it for zero deck clearance. He then bored and torque plate-honed the cylinders .030" oversize. The block was also align honed and detailed.
    Osucha built one of his typical killer street engines, but since Tuned Port engines rarely see

    The engine responsible for this impressive performance was built by MORE Performance in Charlotte, NC. On the dyno, it cranked out 330 horsepower at 4600 rpm and 408 lbs./ft. of torque at 3900 rpm. Those readings aren't pie-in-the-sky dyno-only numbers. They fully relate to the real world because they were recorded with TPI Specialties emissions-compliant headers and dual Random Technology Super High Flow catalytic converters in place. The only difference between the dyno exhaust configuration and the one used in the car is the addition of a

To capitalize on the air flow potential of CNC-ported heads, a TPIS Big Mouth intake manifold was selected along with large tube runners and a ported plenum. This manifold is designed to fit both early and late model cast iron and aluminum cylinder heads.

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