Originally Posted by Jason1351
Notice a difference clm?
As I said, I wasn't sure about the Caprice. I have never had the displeasure of working on one. As to the 289cid, my intention was to let you know that that variant exists, should you run into one by accident on your project. Sorry if I got the application wrong, the only LT1'* I've encountered are F-Body versions.
BTW, on the resonator plate, did GM machine a pocket into the top of the manifold or is it a different casting?
Last, going back to your original post. Why the heck do you want to run the LT1 that you have as a TPI? Yeah, it does produce more torque with the longer intake runners, and some people think those tubes look cool, but what is your rationale for trying to go to a TPI or TBI manifold?