If it came with 98 jets, try 101. As a test, if you get any surging at high speed cruise [ 60 mph or over ], screw IN the screw in the rod hangar, 4 turns. This will richen the cruise without stripping the carb. Reset the screw & go to a larger pri jet.
This combo will almost certainly need three things, because of the cam:
- a lot of timing at idle, up to 40*. Use MVA to add to the static timing. This gets done FIRST.
- increase in IFR, 0.003-5"
- more idle air so that you have 0.020-0.040" of T slot below the blades at idle, in gear. Later TQs have bypass air in the choke air horn that can be enlarged. Earlier models should have the blades drilled; drill the sec blades. Drilling the pri blades encourages nozzle drip because you are pulling more air past the nozzles.
