496 race build

Hey everyone haven't posted on here in a while but our 355 race motor build went awesome and thank you to everyone who answer our dumb questions. Anyway recently I've decidied to take up mud bog racing. Bought a chassis with no motor and last week picked up a 454 block that is at the machine shop getting magnafluxed. The class I'm planning on running requires you to have a stock block so dart blocks are out of the question and must be naturally aspirated so no N20 or blowers. I have been planning on building a 496 stroker motor but still have the option to go bigger cubic inch. Don't know a terrible amount about big blocks all new to me so I was wondering if I could get some info on parts to use and what not. Pretty much all I know is small blocks but I'm ready to build some big block power! Lol thanks yall

machine and built many 496 for what your doing and much bigger and your not going to get much bigger in CID with a stock 9.800 deck i have done some 513 with a 454 block .but its not a job for many that never done it . the shelf pistons they sell for a 4.310 bore and 4.375 crank in mahle do not work good with a used block after you true the decks the piston will be out of the deck so the CH on the pin is wrong .Auto Tec has or did have a piston that was built for me that would be much the same price as a shelf piston other then that it is a wisco piston .with a K1 rod of 6.405 they are the only ones that make that is under $800. that common rod for 496 /510 build is the 6.385 rod thats 250 longer then the stock rod 6.135 then its custom built piston and the added time work going to a 510/513 in the short 9.800 deck 454 is not worth it the way i see it. but the 10.200 427 tall deck if the right year will take a 4.500 crank so it not hard to be at 525/540CID built some and wiseco make a small bore piston with a 1.120 CH so you can use a 4.750 crank in the tall deck bbc that will get you 571 at max bore of 4.375 so its not hard to build a 560 cid engine with a stock 427 tall deck

Well 496 it is lol. What would be a good set of heads to go with? Also would like to know what cam to choose. Competition products sells a 496 strokes kit that's 13:1 compression w/118cc head. Would it hurt to go higher in compression. Not concerned about having to run race fuel