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

The link to the rule book is here:
http://westcoastsprintcars.com/rules.html

Basically, there's a displacement restriction; within 1% of 360 c.i. There's 2 options for cylinder heads, open in which you must run a head within 1 degree of the OEM valve angle, and spec in which you must run a Brodix ASCS B1BA cylinder head which can't be ported or modified in any way. No electronics, a magneto must be used. Mechanical fuel injection is also required. I believe that sums it up. I agree. The only reason I'm starting with a factory block is because labor is free and I can do some labor to make it hopefully more rugged, and I can't afford $2000 for an R3, R4, or R5 block.