I thought I recognised you Shotgun. I am Dim Bulb and was MB for years. Rich has done a lot lately on CP. Not trying to hijack the topic, but let me tell you guys- Shotgun knows his stuff. The traditional Pontiacs have a 1 inch taller deck height than the 301, hence,most brackets are different not to mention the air pump setup and all that goes with that. I gave up trying to fit 400 stuff on my 301's and vice-versa so now I save all the brackets I can for both series motors.