Is valve shrouding a concern in a 318 w/ 2.02 & 1.6 valves

Like i said, find me a rules/stipulations list....with an "open" class....the guy with the most money wins...so i don't get how that works. there has to be a class or rules set. Most of our ct engines have tamper proof seals that don't allow and modifications. hence sactioned racing, and making the driver the reason for winning, not the pocket book. educate me on what you can, and cant do. a "free" couple parts isn't a way to start any build...

"hey i want to build a nasty street engine...but my buddy gave me a 273 block, 3 cast pistons, and a tunnel ram with a dominator carb...so i want to use those"....not soo great a combo