I refer to myself as Big John. I went to Cal State Fullerton and started in the automotive industry in 1987. I began working at Jim Curley GMC IN 2022. I truly love the car business and consider my co-workers my friends. They are the heart of the dealership. I am originally from Linden, N.J. and have lived in Toms Rivers since 1997 .I lived in California for 6 1/2 years, and my first real job was at Disneyland. That is where I learned that customers always come first. I've been married to my wife Barbara since 1992 and have twins Nick and Kaitlyn. Both college grads and both enrolled getting their masters in education and business analytics. . I'm proud to say that my wife and my kids are everything to me . My success is their success . It feels great to be with the Curley family . Now 2 great locations! Jim Curley Buick GMC of Lakewood, NJ Jim Curley GMC of Keyport , NJ
Read moreDealership Experience
3 yrs, 4 mos
Industry Experience
38 yrs, 11 mos
Languages Spoken
English
71 Reviews
Write a Review71 Reviews of John Duncsak
December 02, 2025
Just purchased #14 vehicle from Curley GMC. Have always been well treated there. Love my sales girl and of course the service department is the BEST. Have always been well treated there. Love my sales girl and of course the service department is the BEST. More
Other Employees Tagged: Chris Cotten, Cynthia Rothschild
December 02, 2025
What a great experience so far. Fank Mazza and the team a Jim Curley were a great pleasure to deal with. Totally professional and I highly recommend them to anyone looking for a new Fank Mazza and the team a Jim Curley were a great pleasure to deal with. Totally professional and I highly recommend them to anyone looking for a new or used car. What a difference from the last dealership I went to. More
Other Employees Tagged: Frank Mazza
November 24, 2025
Cynthia was excellent- no pressure sales and service on vehicle pick up day was exceptional vehicle pick up day was exceptional More
Other Employees Tagged: Cynthia Rothschild
November 18, 2025
Everyone at Jim Curley was extremely friendly and knowledgeable. Overall it was a pleasant experience. knowledgeable. Overall it was a pleasant experience. More
Other Employees Tagged: Cynthia Rothschild
November 05, 2025
I drove from Brooklyn. A++ experience. Cynthia was terrific. Everyone was extremely friendly warm and inviting. Highly recommended! Thank you!! A++ experience. Cynthia was terrific. Everyone was extremely friendly warm and inviting. Highly recommended! Thank you!! More
Other Employees Tagged: Cynthia Rothschild
November 04, 2025
In 20 years of buying vehicles this was hands down THE BEST EXPERIENCE I have ever had. Everyone I worked with was professional, and worked hard to get me the best deal as fast and easily possible. I wi BEST EXPERIENCE I have ever had. Everyone I worked with was professional, and worked hard to get me the best deal as fast and easily possible. I will definitely be back! More
Other Employees Tagged: Cynthia Rothschild , Damen Krone
October 27, 2025
My experience buying my car at this dealership was nothing short of amazing. Everyone was helpful, friendly and honest. Ed took his time and really showed he cared about his work and his customers. I nothing short of amazing. Everyone was helpful, friendly and honest. Ed took his time and really showed he cared about his work and his customers. I would definitely recommend this dealership! More
Other Employees Tagged: Edward Smuda
October 27, 2025
Frank was extremely knowledgeable about the truck and really took the time to explain all the electronics to me. Just whole experience was great! Managers all thanked me and welcomed me to their family. really took the time to explain all the electronics to me. Just whole experience was great! Managers all thanked me and welcomed me to their family. I would highly recommend Frank and Jim Curly GMC! More
Other Employees Tagged: Frank Mazza , Andrew Horochovic
October 13, 2025
The experience buying a truck here was amazing. The process was easy and stress free. Frank was amazing, and great to communicate with. Answered all of my questions, and helped me out as much as The process was easy and stress free. Frank was amazing, and great to communicate with. Answered all of my questions, and helped me out as much as he could. Thanks! More
Other Employees Tagged: Frank Mazza
October 09, 2025
I had the best experience at Jim Curley with Frank Mazza with financing my car!!! I felt comfortable and my every need was met! Could not have asked for a better experience!! Thank you again Frank! with financing my car!!! I felt comfortable and my every need was met! Could not have asked for a better experience!! Thank you again Frank! More
Other Employees Tagged: Frank Mazza

