Quote: Those manifolds look really cool but imagine changing spark plugs around a cast iron radiator. The manifolds put off a ton of heat and raise hell with master cylinder. If you were going to drive the car and race it I would put headers on. If you were going to have a show car the manifolds would be fine.
last time i checked headers make a ton of heat in the engine compartment. exhaust manifolds do not. sparks plugs as said are a breeze to change. those Maxi Exhaust Mans don't give up a ounce of horsepower to any modern header. they are alot heavier though. but thats an excuse to put the battery in the trunk. single master cylinders in the day did not suffer the heat sink problem like modern dual master cylinders will. but you can always had a heat shield to help protect it.
