caferacerx said 63 to 66 http://www.brewersperformance.com/proddetail.asp?prod=CPA63A 67 to 69 http://www.brewersperformance.com/proddetail.asp?prod=CPA67A 70 to 72 http://www.brewersperformance.com/proddetail.asp?prod=CPA70A 73 to 74 http://www.brewersperformance.com/proddetail.asp?prod=CPA73A 75 to 76 http://www.brewersperformance.com/proddetail.asp?prod=CPA75A going by the pics on brewers web site early A-body 63-66 are different (I know this to be true) and 75-76 are different the 67 to 74 all look the same Click to expand...