[BEB]

I'm back - Cobra still not fixed !

Last night I tried playing with different pump cams in a bid to make sure the throttle plates move the moment I hit the gas - I checked that on all the different colour cams that there was .015" gap at WOT. Funny thing is that on the Green cam, which the engine 'seems' to prefer, the accelerator pump arm does NOT move immediately when I hit the gas, neither does it with a Pink cam.

However, with a Black cam the pump system works immediately but there seemed to be a 'bigger' bog/stumble with the Black cam.

Now I'm totally confused as I'm sure the problem is that there is a delay in the pump system working but the cam that the engine likes best has a delay (I guess because of the cam profile/shape).

Looking at the pump arm it seems to be slightly bent upwards where it rest on the cam. Should I try bending it to give me an immediate pump action whilst maintaining the .015" gap at WOT?