I put an HEI module on a 1.0-liter Suzuki engine. It senses a signal from the distributor pick-up (the camshaft position sensor), and triggers the primary side of the ignition coil. It runs but doesn't run good at high rpm unless I remove the bolts from the distributor cap and turn the cap several degrees past the adjustment range. My question is: Is there a lightweight electronic gizmo that will advance the timing? I don't want to have to use a heavy MSD box.