Drag Racing Tech - Lt1 stuck at 11.5

Guys I need some help with my 95 lt1 street/strip car. Last year the car was running 11.5 at 116-117. This year after removing roughly 100lbs of weight the car runs 11.5 at 115-116 :bang:.
One problem I know I have is that the car is shifting into overdrive 200ft before the end of the quarter (redlines).
The car is a stock bottom end lt1 with ported stock heads, 503 cam, 3200 vig, 3.73s with drag radials. The redline is currently set at 6400 and shift points are set at 6200, I need to raise the shift points inorder to run the whole 1/4 im wondering if I might see an ET gain from this?
Is there anything else I can do other than nos to gain something or anything?

yes raise redline...cars not running too bad...if its full weight or close and those arent fully ported heads...

Im not full weight, The car has a full stock interior minus heat/ac/radio/airbags and has a kmember/front brakes/and no bumper.
Am I at the point of needing a throttle body upgrade? It seems like I hit a wall with gains from weight reduction.

nope...my cam only car at 3500 pounds went 11.9...wit heads shoulda gone 11.2 or so...lose some weight go 9's...whats your trap speed at the 11.5?

I would raise the shift points,I have smaller cam and stock heads & shift at 6100,,,not sure on tb. You got a nice running LT1.

what size tires are you using? if you are running 26s you might try a 28 inch tire. otherwise bump up the shift points a little. is it going into OD or is the converter locking up? you shouldnt be running out of gear with 3.73s. nitrous will only make the problem worse i would imagine.

what size tires are you using? if you are running 26s you might try a 28 inch tire. otherwise bump up the shift points a little. is it going into OD or is the converter locking up? you shouldnt be running out of gear with 3.73s. nitrous will only make the problem worse i would imagine.

Im running 26" tires (275 50 15s) To be honest im not sure if it is the converter locking up or OD. The factory tach reads 6200 in third and then the rpms drop way down a few hundred feet from the finish line. It lays right over at that point which cant be great for the mph.

http://i203.photobucket.com/albums/aa238/chas2470/95cammy007.jpg
http://i203.photobucket.com/albums/aa238/chas2470/95cammy008.jpg
http://i203.photobucket.com/albums/aa238/chas2470/95cammy009.jpg

Stock suspension other than adj. lower control arms and relocators
http://i203.photobucket.com/albums/aa238/chas2470/95cammy004.jpg