June 28, 200619 yr i have an 88 gl. i was wondering if there were heads that have exhaust ports differ from mine i have single ports on each side. are there heads with daul exhaust ports and could i swap them on my engine. or would it be worth the hassle? seems maybe dual ports would be better than one.
June 28, 200619 yr Only single port exhaust on the 80s soobs. The MPFI and Turbo heads have dual port intakes, but not dual port exhaust.
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