Thread: Thompson Performance Powerblast Plates

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POWERBLAST PLATES
So, I heard about these on this thread, checked them out on their website and decided to order two for my Edelbrock dual quads on my SBC. Ordering was easy Dan and Jaimie are both very nice people to work with and the shipping was extremely fast (2 days). These are very nicely machined and finished,

Today I installed both POWERBLAST plates into my carbs, installation was easy, took about 30 minutes total for both carbs (for some it may take a little longer, I’m pretty well versed on carbs).

Here’s the Good, Bad and ugly on these, WAIT a minute, THERE IS NO BAD or UGLY! These things ROCK!

My carbs were tuned really well, with crisp throttle response no bogs or hesitation. Now the throttle response is even better, I was able to lean the accelerator pump settings. But even more amazing is the transitional throttle response is better (slow off idle response), I believe this is due to a better vacuum signal through the boosters caused by the plates. The increased booster signal made the carbs a little richer, but nothing a jet change and a few adjustments couldn’t fix.

Overall carburetor performance is noticeably improved with the motor much smoother to drive. I would highly recommend these for any carburetor. In my opinion they are totally worth the price of admission.

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