Hey guys i got a 1970+ c4 tranmission in my drag car. I went in the water box to burn out and it started to spin the tires but then all of a sudden my rpms shot up. well i just took it out of gear and coasted up to the tree. the lights came down and i mashed on it and my rpms just raced and I could not shift out of first. and it would barely spin my wheels until finally it just stopped and i have no forward drive i had to push the car out. However the tranmssion will work in reverse. Does ne1 know what the problem is? Any help would be greatly appreciated. Thanks Jared