One other item, again due to AMCs limited budget, their dealer installed performance upgrades or dealer offered consisted of Edelbrock intake manifolds. As a former Edelbrock and Holley warehouse owner, we used to get the manifolds from Edelbrock. The designation I remember for the single 4 bbl was R4B and it also had an AMC part number on it. The later engines, 304,360 and 401 were a bit taller if my memory is correct. A friend bought a used A sedan Javalin to race in SCCA and we found later it had actually been one of the factory race cars, the Traco Enginering one. The log book (required of all competition cars) traced it back to being put on the track in 1967, shortly after model introduction. I saw a Javalin at the now defunct Luhring Rambler in Norfolk Va. two weeks before it was shown to the public. I was able to sit in it in the back shop area, but couldn't take it for a drive until official release.