For all guys the prefer "hard" stuff like K Motion K800 Dual Chevy springs, steel pushrods and monstervalves they can stop reading here.......
I've found two tables to the engine technology of Formula Vee and Super Vee, which show the fine technique to build a "air"-cool engine .
Have a look on valvespring pressure, valve size and carburetor size and the performance per liter they achieve.
My 1915er streetengine is built "almost" identical
I love the response of this engine ......
Try it yourself once , a wide grin is for sure