Review on 🔧 Improved Advance Curve Kit by Mr. Gasket 925B by Jeff Bridgewater

You are replacing the heavier of the two springs on your distributor with one of the lighter springs in this kit. Now reassemble the distributor and wow - all your mechanical synchro's are at 2400rpm. This is truly a stunning performance upgrade for your 60's or 70's car. I have a '69 Chrysler with a 440 engine and it behaves very well and is quiet for just cruising around town. But if I press his leg, he turns into a snarling beast! A really great and simple product that will revolutionize your car. This was my experience.