BigBlock90

iTrader: (4)

My truck is a 1990 454ss and everytime i launch this truck at the track, the front tires lay in on top and turn inwards. I know years ago i ran bump steer kits on my fox mustangs but havnet seen anything like it for the trucks. Whats the ideal fix that i need for the problem. You can see how they lean in and forwards in this pic. The engine is out of the truck right now and the tires are so crooked and squeal like crazy on the concrete when rolling it around.

Blown06

iTrader: (32)

That is a severe bump steer issue. You need to adjust the bump steer.

astroracer

What attitude are the tires at with the engine in and the truck sitting static? How does it drive? What have you done to the front suspension for drag racing? Removed the sway bar? Different control arms? drag shocks? As you can see some background would help here...
If the truck launches good, drives straight and doesn't jump around on the track I wouldn't worry about how the tires look at full droop. As long as it settles down and drives straight at mid-track the tires don't care where they are when you are carrying them off the line.
Mark

BigBlock90

iTrader: (4)

The truck has moroso trick drag springs up front with 90/10 shocks and stock control arms. Setting with full weight and alignment correct it looks fine right now. It just goes down the track with the front lifted and they stay like this til you let off the throttle. Im just not sure what route i need to take in fixing the bumpsteer issue with it.

astroracer

If you haven't changed any suspension components other then springs and shocks you don't have any "bump steer". All you are seeing is the tire at full rebound during launch. That is what the soft springs and shocks are supposed to do. They let the truck come up easier in the front, under acceleration letting the tires hang. If the truck drives straight you have nothing to worry about...
Mark