I to am planning on putting a McCulloch VS57 on my 235 although I am going to fuel inject it also. I started working on the fuel injection today. The plan is to get the fuel injection working and tuned, then add the McCulloch later. According to my research the McCulloch VS57 only produces about 7 PSI max, so inter-cooling or after-cooling should not be an issue. I am running a Whipple Charger on my 99 GMC (5.3) @ 7.5 PSI without an inter-cooler for over 100k miles with no problems. Keep us posted on your progress.