With work now complete on our Group 44 Inc. GT6+ and our 1969 Triumph TR6, we're turning our attention back to our 1500 Spitfire. Ever since we bought the car, we've been very dissatisfied with the single Stromberg carburetor that came with it. Designed more for meeting U.S. emissions standards tha…
So does changing to the two-carb setup bump you up to Street Prepared or can you still run the Stock class since this is the stock setup in other parts of the world ? Would this be considered "backdating" and therefore legal in Stock?
how much can I expect to spend on a SU upgrade on a 1500 assuming I can find a good set of used SU's?
Missed these comments earlier. Sorry. Technically, switching to dual carbs would bump you into Street Prepared. You could argue, at least at the local level, that this is how the car would have come in England. You can also say nothing and 9 out of 10 tech inspectors and fellow competitors would not notice the mod. The other 10% would probably feel sorry for you for running such an old car and let it slide.
The cost for this set up is only about $400-500 depending on your source for parts and condition of what you get.
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