Yeah I'd say that cam is too big for a cruiser type car. The Comp 286HR is probably a better choice. It is 236/242 duration. The next size up is the 292HR which is 242/248 and is listed as having a rough idle. I've run the 292HR on the dyno in a higher compression stroker and it runs nice, but the idle would probably be fairly rough.

With 3.23 gears and lower stall point I'd go smaller on the cam. The other thing is that unless you are highly skilled at carb work the big cam won't be much fun with the six pack. Those carbs are not designed to work with a big cam.