[madmaxx]

what an incredible difference! best mod yet. Phenolic has an insulating value 10 times greater than aluminum. The area of the manifold below the carburator was 145F. The carburator just above the spacer was 70F!!!! It was about 65F today outside. I am sure my emmisivity value was not exact on my IR camera but you can see the difference in temp. I also watched the fuel level in my float bowl over a couple hours and it never changed!!! seams they should be standard.