you must have an svo block, i dont know if you can rollerize it or not? someone here can help you im sure, you probaly can, if so, id stay with a 224 dur 533 lift cam, lunati or crane cam, yea rebuild that bad boy, and make sure and get some roller rockers if anything, your car should be capable of mid 13's on street tires, depending on suspension, hope you get it all fixed up, port those heads, and match intake, and you might see 12's, but not sure, never worked on a 351w.....peace
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Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer 
Race weight: 3,120
E.t-13.57 with 26x10.50's e.t. streets. 1.88 60'
mph- 99.92 mph
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