also running a mallory ignition and high performance coil. accel 8mm solid wires and they're fine so I know it's not ignition. Runnin 2 webber 40's with 55 accel 165 mains and 220 airs running no chokes, venturi's have "s" stamped on them. 12.5:1 compression, 298 cam, oversized valves with dbl springs. any tuning help or jet advice welcome. Thanks