A: With a 4.0L header or '81 and newer 4.2L exhaust manifold. The split level intake is far better tho! From: Rob Curtis <growdupwrong@xxxxxxxxx> To: mail@xxxxxxxxxxxx Subject: 66 AMC 199 and intake manifolds Hello... Will this: http://tinyurl.com/cebo9 Fit on my 66 199 Straight six? Thanks, Rob