It has a y  pump it is a 1953. I got a pimp coming but is off of a combine but the numbers match and it runs so i am going to try it.I checked it has the restrictor  and i have about 6 psi of fule pressure now that i put a electric pump on it . so i hope it will work . What is the best gear to pull it in ? my cusin pulles his M in first but it is a M any way they say the sled is about 30,000 lbs . The smoke screw is on the inside it is a Y pump.