Here is what I hope will be a good newbie (1/12 scale anyway) question.

I"m running a Protoform AMR12 lid on a 12r5.1, running a Cirtix 17.5 combo (with gearing that looks like it belongs on a bicycle...normal, I know) in a no boost/timing/turbo class.

Could this lid be supplying enough downforce as to slow the silly thing down? I"m running out of the box tires, geared 60/72, so I can't go much larger or smaller on either. I"m as quick or quicker on the infield sections, but loose time on the open areas. This is an outdoor track on bumpy, sugared asphalt. Settled on Purple/pinks yesterday and the car now feels really settled.

But short of dropping a Novak Ballistic in the thing, can this lid be too "slow" for my power(less) condition?