Speaking as a J owner (same setup as ram K), I have the heat totally blocked at the carbs by using the Simplex Co. (Bob Merritt) shims. Using the shims allows one to easily unblock the heat or allow partial heat to the carbs. One can block the heat at the headers, but it would be more work to remove the shims.
Engine performance will be poor in cold weather. Furgitabout driving the car in winter. In cool weather (spring/fall), I have found performance to be normal once the engine is up to full normal operating temperature (i.e. Thermostat open, 180 degrees).
In warm weather I have had no issues. Throttle response is immediate and performance is fantastic. Aggressive throttle application will nearly incinerate the rear tires (no suregrip on this car!). Your toupee will not just fly into the back seat – it will fly into the next county! OK, a little hyperbole there, but you get the point.
Carl B.
Hi Rick,
Carbs that sit directly on top of intake manifold use the heat of the engine to vaporize fuel. Outboard mounted carbs need heat to vaporize fuel. If you block the exhaust heat completely, your engine will not perform well unless you water heat the rams like the ‘60-‘61 Gran Turismo racing cars.
Suggest blocking the opening 1/2 to 2/3.
Tony
On Thursday, October 19, 2023, 1:29 PM, Rick King <rickking952@xxxxxxxxx> wrote:
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