What kind of material could you use to fill the ports on the engine. I talking mainly about the exhaust ports here. I've finally figured out how the RENESIS exhaust works and I want to see if it's possible to modify some rotor housings to make it similar. Or at least know if it's even thinkable. I finally got some good pics and it was just like I expected...the exhaust ports are just like the intake ports on our current cars. It doesn't go out the side like ours it's in the rotor housing (like you were porting the engine and added an extra hole below the intake ports). Alright you guys now get to work...