5208's are pretty small but are equal length. I had them on a STR-12'd 340 with a pretty mellow 284/.484 MP cam. They were very well engineered, didnt hit a thing but came super close in like 10 places....mine were drilled too low so the port floor kept leaking and was driving me crazy. Hooker/Mr Gasket told me to produce the receipt..on a lifetime workmanship warranty? I sent them the burned gasket and still no dice. For the price, you still have to cut the inner fenderwells pretty good and the front tires will rub at full lock unless you run some skinnies, will be worse with drums. Manifolds are not that bad: for $400 you can get some early 340 logs that flow pretty well and you can keep your inners and your bank balance. Remember this car is ~3000 lbs and that doesn't take big block power to run with the big dogs. Hedman used to make a 2" W2 flange for this combo. I wrapped mine as it was getting HOT under there, lots of surface area! The wrap mellowed out the sound too and totally cured the heat issues.