Is my combo wrong?
 

My times at the track are not what I expected when using the bottle.When I bought the NOS kit I was told I would get about 1 sec drop in ET.I'm only seeing a 6 tenths drop.If anyone can see a problem with the combo in my profile then let me know. Any help would be appreciated.Trick Flow heads are next on the list when funds allow.

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90 LX,full exhaust,4.10s,southside uppers & lowers,crane 1.7 rollers,GT 40 upper & lower,24lb inj,B-303,Pro 5.0 shifter,70mm TB,75mm mass air,msd 6al,BBK cold air,adj fuel reg.,190lph,Hoosier D.O.T. slicks.100 shot NOS, 8.78 80 mph motor 8.12 @ 86 NOS 1/8 mi.

Dropping 6 tenths in the 1/8 mile seems good to me. I think a full second would be for the 1/4 mile....

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Eric - 89 Mustang LX coupe
302 - Cobra Intake - GT40p heads - TFS stage 1 cam - FRPP 1.6 roller rockers - Naturally Aspirated
3:73 gears - KYB shocks and struts - Eibach springs - HPM Mega-bite Jr lower control arms - HPM upper control arms

Might need a larger fuel pump. Is it running lean?

0.6 second drop in the 8th is pretty big...

I guess that would be 1/4 mile. I didn't think of that.No it's not running lean yet.But i'm going to change the NOS pills for 125 shot.My fuel pump should be good for 450hp+ right.Does anyone know roughly how much stage 2 trickflow heads would produce as far as horsepower and/or further drop in et.

For reference my car with a 150 shot drops from a best of 8.9 to a best of 7.9. So your .6 doesn't seem bad to me either. Now drop the 150 pills in there and see what it will really do. http://www.mustangworks.com/msgboard/biggrin.gif

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My 94 GT
http://members.home.net/caruso14/fasford2.jpg

Are you sure if the reason you are lacking that supposed 4 tenths of a sec isn't due to driving skill?

How many lbs of tire pressure you running?

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351W-powered 1979 Ford Mustang notchback
Stock 5.8L under 4" cowl, C4 w/ shift kit
Holley 750 cfm, Edelbrock Performer RPM intake
1 5/8" MAC shorty headers, Al driveshaft
2.5" Off road H-pipe, 2-chamber Flowmasters
Front: 225/60/15, Rear: 255/60/15 Eagle GT II
Weld wheels (15x6;15x8), 8.8" Rear w/ 3.55s
14 x 4” K&N air filter (getting the Xtreme setup someday) http://www.mustangworks.com/msgboard/cool.gif

"Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body

I'm not saying I cant improve my driving skills but I've been going to the track for 3 years now in 3 different mustangs and i think im doing ok in that department.My tire pressure is 10psi.