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Anymore 3.23 or 3.55 combo's?




1969 Roadrunner, 3700#, 3.23 gear, 91 oct gas
906 heads, big valves, iron rockers
10:1 TRW's, 6 pack rods, 509 cam
Holley Street Dominator intake, Holley 850
Solid 7 blade steel fan, stock alt. & pump
1.75 headers, 3500 stall 727 w shift kit
29.5 x 12.5 Sportsman Pro's
12.45 @ 110 in 4500 density altitude in 100+ degree heat in Las Vegas.

11.759 @ 111 DA corrected et.

I drove it to work and to the track often, that thing was a lot of fun when I put 4.30's, a dominator carb, and a small roller cam in it, ran a best of 11.48 @ 118.


Sounds like a nice running car.The cam, carb and gear change picked it up a bunch too. My junk: 68 Satellite glass 6 pak hood. 3.23, .030 over 8.5 , pocket ported 906s, stock valves.Comp 292 hyd, Torker, 750 DP, Hooker 1.85, GERRR 10 in., 28x9 M/Ts. 12.35 at 106 in cool fall Okla weather.