Performance Auto Research

Initially I thought the power was pretty low, but who knows exactly what’s been done to the heads, and the shop apparently doesn’t own a burette, because they talk about how they don’t know what the actual CR is...... because they didn’t supply all the parts.

Looking through some of my sheets, I have a test on a mild 446RB.
9.5cr, Comp 280, stock rockers, 346 heads with an VERY minor bowl blend(about 1hr total for both heads), 6bbl, 1-7/8” headers.
499.9tq(just wouldn’t break 500), and 424hp....... so, not too far off this 451 build in terms of power.