I tried a set on my 351w on the dyno. I started with 70 351 castings, ported exaust, with a torquer 2, they made 400hp@5900, 400ftlbs@4800. Put the worlds and a victor jr on, 430hp@6000,410lbs@5000. The RPM cut off was 6000, the power was still going up, it was not with the stockers. The compression ratio also droped from 10.6 to 9.5 going to the world heads. I was very happy with the results, picking up 30hp, when dropping a full point of compression. Still haven't run them on the track yet though.
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93LXcopcarSOLD14.3@96 @ 4500ft 2.02 60ft on street tires.
my 67 ranchero NOT A 390 ANY MORE! 460! 3.70's cast manifolds, comp cams 262H, performer, 750DP 100K out of 79 F250
NEW(oct20/02)14.58@95mph 2.3 60 ft
corrects to:13.86@100
66 merc comet351w, isky roller 600 lift 268/260@.050, vic jr. 700DP, 5000stall, 4.56's c-4, 3400lbs with driver
12.3@110 @ 4000ft 1.69 60 ft
corrects to:11.69@115
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