I have gone a best of 1.77 on 275/50-15's BFG Dr's. That is with my T-5 and my C4. With my cam and heads the car has now gone 1.73 on slicks so we'll see how the Dr's can handle it when I get to the track next.
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88LX 5.0,C4,3200stall,TFS stg 1 cam, ported E7's, BBK LT's, Race magnum bullets, ASP 3" pulley, 3.73's, 75hp NOS Dry Kit, Explorer intake
7.94@85 N/A 1/8th C4
7.61@89 N2O 1/8th T-5
http://www.angelfire.com/ns/PurgingPony/50mainpage.html