Hi Nick! I plan on ordering a GTForte chassis from Darren in the future. I am currently building a 1966 289 sbf for that chassis. I would like to weld up the headers while I'm waiting for other parts to arrive. Are there any measurements that I should have to keep me from running exhaust piping into the chassis? Or can I just wrap the piping around the back of the engine into 4 to 1 collectors? Thanks for your time.