There's a local racer here been running a 460-514 BBF in his Pontiac for 20+years. The Pontiac guys hate him -- the Ford guys love him. And it's fast!

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1970 Cougar, 3660 lbs
418W, C6, 3.50 posi, slicks & street trim
Best 1/4 mi: 11.24 @ 119 MPH Best 1/8 mi: 7.13 @ 96.32MPH