Don't waste your money on chromoly pushrods. They have the wrong expansion rate and you'll have .015"+ hot clearance and a noisy engine.
Our 2025 aluminum pushrods have the correct expansion for the 356 and 912 engine. When set to .006” cold on intake and exhaust, the hot clearance is less than .010”. They are super light and stiff enough for 7000+ rpm with our WR78 camshaft. They are available in two lengths: The stock 10.100" length and a slightly shorter 10.070".