well today i went to pick up the truck. we started it up and it seemed like the battery was almost dead(brand new yellow top optima 200 bucks). anyways it starts up but its idle is at like 300-500 rpms, seems very weak, but figure that may be ppart of the pcm that needs to be adjusted. but when i left the shop the truck got up to about 40 and was hitting 4000 rpms and wouldnt go any faster. wjhat could the problem be? maybe the engine was hooked to a 80e and needs to be tuned to the 60e? the dudes getting it looked at tomorrow, but i figured maybe id get ideas from yall now.