Steve knew them I believe back when they were C&G and I have been with Steve with Randy Garciga at Poker Runs 3or4 years ago and I've been to the cobra shop and was impressed. They built some engines for a friends Cafe..The only problem I have seen with custom motors, no matter who they are built by, is if there is a problem they have to go back to their shop. A lot of down time. At least with Merc the problem can be fixed with a phone call and Fed Ex usuallyBut custom motorsd have made friends boats really run, look good and sound great!!!! Just my 2cents!