[rally 1]

I've run both manifolds.
Throttle response with the Ansen/Scalded Dog wasn't acceptable to me. The Snyders design just ran better.
While manifold heat definitely helps maintain fuel vaporization, not having it never was a problem for me. Being in Ohio, late fall generally just required a little longer warmup, plus a 180 thermostat.
To qualify, my engine(s) are 8:1, Stipe touring cam, tube header, electronic dizzy, Stromberg 97. Currently run twin 97's.
Spent a LOT of time working out the ignition timing. I believe compression and ignition are the key components to making these engines run good.
Ken