SHELF LIFE FOR CARB?

Holleys I would kit. Edelbrocks you may not need to for a couple years or so. The holley metering block gaskets have many holes for different passages. a little shrinkage of the gasket and you have problems. Same with the float bowl gaskets. They are very narrow and contain the passage way for the accelerator pump. I had a Holley start on fire because it sat too long and the gaskets dried out. The old cork and black colored gaskets were terrible for that. The later design blue gaskets are the best bet.