New pistons were put in with the re-build. Im not sure what kind or brand they were. But the engine builder (who is known for building mopars) said that the motor will have 9:1 compression.
I was talking to a friend yesterday about the issue. He has a 318 Dart that is nearly stock. We were at the local track and he was running 15.4 all day. Last fall I couldn't get into the 15's with my car. And said his Dart can burn them from a stop lol. I plan on taking my car to him and see what he can do. He thinks it's in the timing/carburetor. I know he is very experience in working on small blocks. Hopefully we can pin-point the problem.
I'll probably create a new thread about it when we do this. I'll bring up everyones suggestions.
