468/.489-inch lift (PN 60102), or even one of Lunati's new Street/Strip cams with a less-aggressive lobe profile offering 223/231 duration 0.050 and. ![]() Ideally, if we were to do this over again, we'd probably select a Voodoo cam with a shorter 219/227 duration 0.050 and. This caused a dip in the power levels right where our peak horsepower would've been found. Even with our Lunati PN 74818 springs set up to deliver a burly 155lbs-seat and 330lbs-open spring pressures, we still ran into some valvetrain harmonic issues between 5,300 and 6,000rpm. As for our camshaft selection, we'll admit that the Lunati Voodoo 268 grind is a bit gnarly for our cylinder heads. ![]() We mercilessly beat it with almost two hundred full-throttle, full-load dyno pulls up to 6,500rpm, and a couple up to nearly 7,000rpm. The GM Performance 290hp 350 crate engine we used proved itself as durable as an anvil.
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