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#11
06-05-2008, 09:42 PM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
I've got the 480 all in Quickly... with as much initial as it can stand and still crank.
It will be running 110 leaded... I am mainly worried about being lean on the top... I can't remember if I put 68 72's in the carb or 72 76's... I will have the camera... we are going to try to get some good shots of it launching... It looks so freaking sweet with the M/T's on rally's, the Yellow Lakewoods peeking out, and the Torque Thrusts on the front... We are going to drive it like it was meant to be driven!!!
__________________
~JAG~ NCRS#65120 68 GTO HO 4 spd Alpine Blue /Parchment 2 owner car #21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built. 71 Corvette LT1 42k miles Original paint - Black - black leather - only black LT1 known to exist. NUMEROUS Lemans blue Camaros, Monza Red and Daytona Yellow Corvettes & a Chevelle or two... Survivors, restored cars, & other photos https://picasaweb.google.com/lh/myphotos 
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#12
06-06-2008, 01:36 AM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
What gear is in it? M21 trans? Don't need it to fat in the heat. You can pretty much leave the motor alone. The work needing to be done is at the rear of the car on a Z/28.
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#13
06-06-2008, 07:01 AM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
Car ran a best of 9.16 @ about 74mph, 60 ft. times average about 2.0. The time was terribly disapointing! We need to change a couple things and I think 8.75 is maybe possible.
We had alot of fun and did'nt break anything, so it was all in all a pretty good Thursday night. James has a couple of pictures to post.  
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#14
06-06-2008, 04:15 PM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
If the motor isn't to tired it is ALL in the rear and putting an M20 trans in.
Post the pictures!!!
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#15
06-06-2008, 04:48 PM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
It has a M20... the motor is running out of fuel on the top, plus the points are bouncing at 7200...
__________________
~JAG~ NCRS#65120 68 GTO HO 4 spd Alpine Blue /Parchment 2 owner car #21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built. 71 Corvette LT1 42k miles Original paint - Black - black leather - only black LT1 known to exist. NUMEROUS Lemans blue Camaros, Monza Red and Daytona Yellow Corvettes & a Chevelle or two... Survivors, restored cars, & other photos https://picasaweb.google.com/lh/myphotos
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#16
06-06-2008, 05:11 PM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
It may ET better at 6500-6700 rpm's. Are you running at least a 4:56? I am running 72's and 78's in the 780. Mine feels the strongest at about 6700 with a 4:10 rear and an M21. Mine needs at least a 4:56 to feel like anything. Its a dog!!
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#17
06-06-2008, 05:22 PM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
I like blocking the rear PV on our 780s...it seems a lot more consistent. You sure that thing is running out of fuel?
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#18
06-06-2008, 05:34 PM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
The plugs are awfully white... Didn't have any larger jets with us last night...
Only have a 4:10... How much worse would 4:56's be driving on the street? 4:88-5:13's would really pick it up. OBTW- 2.00 60 foot times...
__________________
~JAG~ NCRS#65120 68 GTO HO 4 spd Alpine Blue /Parchment 2 owner car #21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built. 71 Corvette LT1 42k miles Original paint - Black - black leather - only black LT1 known to exist. NUMEROUS Lemans blue Camaros, Monza Red and Daytona Yellow Corvettes & a Chevelle or two... Survivors, restored cars, & other photos https://picasaweb.google.com/lh/myphotos
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#19
06-06-2008, 05:37 PM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
Hey Rob when you block the PV how many jet sizes do you need to go up?
__________________
~JAG~ NCRS#65120 68 GTO HO 4 spd Alpine Blue /Parchment 2 owner car #21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built. 71 Corvette LT1 42k miles Original paint - Black - black leather - only black LT1 known to exist. NUMEROUS Lemans blue Camaros, Monza Red and Daytona Yellow Corvettes & a Chevelle or two... Survivors, restored cars, & other photos https://picasaweb.google.com/lh/myphotos
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#20
06-06-2008, 05:47 PM
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Re: Black RS/Z & the 1/8 mile... any suggestions?
We have 4.56s in the Sub, and they ain't a whole lot worse...unless you're gonna be doing extended freeway duty? I think a jump of 6-8 is the rule of thumb, but I'd have to check my notebook to see where ours fell...our L72 is probably jetted a *lot* smaller than most of you guys would guess...
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