Another "what will it run?" post UPDATE! New Best!

69 Cuda with 8.5:1 340/727

3.91s

RPM intake

750 Holley

stock J heads

Hughes Whiplash cam

Intake Valve Lift 1.5
Exhaust Valve Lift 1.5 .512"
.518"

Intake Valve Lift 1.6
Exhaust Valve Lift 1.6 .546"
.552"

Intake Duration at .050"
Exhaust Duration at .050" 223°
236°

Lobe Separation Angle 107º

Intake Opening at .050"
Exhaust Opening at .050" 7.5° BTC
48° BBC

Intake Closing at .050"
Exhaust Closing at .050" 35.5° ABC
8° ATC

Last year at the Classics it ran a best of 13.26 @ 103 with a stock converter and 215/70/14 rear tires. 60 ft times were 2.0s at best. This year it has a tight 10" converter and 275/50/15 M/T drag radials. With that cam and converter combo and hooking up hard, what kind of gains do you think I could expect at the Classics in a couple of weeks? Not looking for exact, this is just for fun. 13.10s? 13.00? 12.9?

What do you think?

Thanks

12.85

Depends on the conv but 12.60s

Depending on the weather but, I'll say 12.90 @ 104 MPH
Doesn't that car weigh like 3400+ lbs?

From my personal experience, a 10th off the 60ft times equals a 10th and a half off the ET. So, if the converter and drag radials get you down to a 1.75 60ft, I'd say 12.85 or so.

Quote:

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Depending on the weather but, I'll say 12.90 @ 104 MPH
Doesn't that car weigh like 3400+ lbs?

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Last year it weighed 3440 with a full tank of fuel, spare tire, and jack. Driver weighed 140lbs. This year, the spare tire and jack are removed. The back seat will also be out for the Classics while it's being reupholstered. However, the wheels are now 15" instead of 14" and the tires are wider, so that added a few pounds. Tires are within a 10th of an inch of the last year's, so gear ratio will be about the same.