Going back to Chris's earlier post with performance specs for the WAR FW 190, the recommendation could change a little. Averaging out the top speed, climb rates indicating prop selection and factoring in the Verner Radial engine that may pose a problem with Cooling Drag, a safer route to go would be the (if you want) Riblett GA 37A-315.

Still believing that a weight of 924 lbs can be achieved (noting the aerobatic specs for G Loads requiring a certain level of structure to maintain strength) but airspeed may realistically be in the 160 mph area; a Lift Coefficient at that speed and weight would be 0.21 which fits the GA 37A-315 almost perfectly, or should we put it the other way round.

The maximum Coefficient of Lift (Cl) would be 1.49. Really just a small gain but the airfoil's Drag Bucket extends up to a (comparatively) higher Cl of 0.9 (from 0.83). Yet still reaches down to 0.03. That is usefully less than needed.

The no-Flap stall speed is around 56 mph.