by spencerdiesel » Sat Jul 30, 2016 10:01 am
If it runs acceptably w/ pump to the head but is worse the more you retard it, try more advance. Advance a tooth, retard the pump and advance from there. See what it does.
What letters are lined up on the gears currently?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank
H1C/18
Fuel: Power Driven Stage 2 sticks, THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1 turn in, timing to the head/ >1/4”
Muffler delete