So my 67 Bird has leaky Headman headers PO installed on a 75 400. I was thinking about swapping out the headers for some stock manifolds. Will the 75 firebird manifolds fit ? They look like they might but would like to know for sure. Also thoughts on LBM besides they're expensive as hell. Are there any other issues with LBM's besides the oi filter adapter?
Many Thanx 67 Firebird 400 conv 69 LeMans 400 auto od