Looking for stainless replacement valves for 340

I've been searching the web for replacement SS valves. 2.02/1.60. Length seems to be longer on them all, with Manley being the closest to a stock length valve. I've considered going to an 11/32 stem chevy valve because I need guides, but the length I've found on the .100 longer chevy valve is .050 intake and .075 exhaust longer than the stock mopar valve. Am I over thinking this? It's going in a pump gas mild 340, hydraulic .530 lift cam, with adjustable rockers. Spring seats have already been cut. I need valves that's why I'm looking.

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