Originally Posted by PontiacJack
Anyways my question is, is it tacky to install ram air iii for a gto originally NOT having it? How much does it cost, how hard is it to find parts? I've seen some pretty good looking setups on ebay for $950, including hood ducts, air cleaner etc.... is the original ram air iii intake ness.? how about the ram air iii heads? Or can I find compatible aftermarket parts? I remember reading that lots of headers don't match up well with ram air iii heads...
There's nothing special about a Ram Air III. Ram Air III used the "744" cam on the 4-spd engines, and the plain ol' "068" cam in the automatic cars. The Ram Air III was available in 1969 and 1970, and featured plain "D"-port heads with slightly higher compression than the standard D-port heads, but no more flow. The RAIII had fairly good exhaust manifolds, and came with a cold air induction package. None of the cold air package parts will fit your '71, so there's no point in getting a "Ram Air III" package for your car. The Ram Air III heads will bolt on, and will only give you the advantage of higher compression than your stock '71 heads. There are no problems with headers for the RAIII heads - they are regular D-Port heads that accept any Pontiac "A" body header.
If I were you, I'd skip on the RAIII conversion: the "744" cam is not computer optimized, making the cam good for its time, but a poor choice compared to modern cams. The RAIII heads provide compression, but not that good flow. There is no difference between a RAIII intake and a standard Pontiac 4-bbl intake: it's a regular cast iron intake.
If you want to make the car quick, go with a set of aftermarket heads, a good aftermarket cam, a set of headers, and a good aftermarket intake. Things have come a long way since Pontiac built these engines in 1970, and you'll be paying a premium for the "original" '69-'70 Ram Air III parts that really won't gain you much (and the Ram Air stuff won't fit anyway).