HI DOUGAL, I HAVE THE CURVE SHEET FOR THE 4BD2T, FOR THE LIFE OF ME I CANNOT FIND THE SHEETS FOR THE 4BD1T , I WILL KEEP LOOKING , THE 4BD2T IS ALLMOST IDENTICAL EXCEPT THE TIMING CONTROL ON THE PUMP , BUT FOR STARTERS IT IS RATED AT 135 HP AT 2800 AND 255 LB FT OF TORQUE AT 1900 STILL THE SAME 3.9 L PUSHROD ENG ,BUT THE INJ ARE A LITTLE DIFF STYL , I WILL FIND THE SPECS I KNOW I HAVE THEM BUT I HAVE A STACK OF THE
MANUALS IND AND COMM, ENG, OF ALL THE DIFF SIZE ENGS CLEAR BACK TO 1984 .. JERRY