Hello to the group, I only recently joined up so I will give a brief introduction. I am working on a 1958 Biscayne that is getting an LT1 transplant engine. I am very familiar with Gen 1 SBC and have build many of these for various projects. I decided to go with an LT1 for this build so I would have a reliable power plant with AC while giving me 300+HP and looks great due to the very compact package. I have three engines that I am using for parts so I have some questions related to pros and cons of a few of the parts. Currently I am making a decision on the intake. I have two versions right now and dont know which is better. One has the fins on top angled near the TB and the other is square near the TB. The red one came out of a 95 caprice and the other is unknown. I also have to get up to speed on the ECM. I have two of the 16188051 to work with both have factory Caprice programming. What programs will I need to be able to upload modified configurations to this ECM? I ordered an extra set of ECM connectors to build a benchtop programmer but havent done much more than that yet.