First time mechanicing project. 86 Iroc t-tops...got a body and a tranny nothing else......got to start somewhere....anyways first I thought I would start by learning ...figured it was a good place....first question is how do you tell what kind of engine is in a vehicle by looking at it....If i go junk yard hopping how will I know if I am looking at a 305, a 307 or a 350? And is there any good publications or sites that will help me solve this and other identification problems such as what kind of tranny...rear ends....what not....Hey I warned you I was new at this...Hopefully I will learn a lot and have a good time with this project....