A buddy of mine that goes to my school just bought a S13 for $800 with no motor in it and a recently re-built tranny. The thing is, he can't decide on what motor to put in it. The two main things considered right now are of course the SR20DET. But, he has a carbeurated 350 SBC motor in his garage out of his dad's Camaro race car. Could that possibly hook up to the stock 5-speed tranny and still fit right? Has anyone tried this before? Thanks for any help.