ford flathead carbs
49 ford V8 with isky max 1 cam, mallory dual point distributor, offenhauser 400 heads, offenhauser 2x2 manifold with ford 94 carbs with powers valves plugged and H42 jets. My problem is it has a flat spot. It idles well and runs at high rpm excellent but acts as if it is running out of fuel just above idle. At idle it has approximately 17" to 18" of vacuum.