Any one that thinks the 318/360 is a dog manifold with a little port opening work has never tested one and seen the results. It ran within 5 hp of an air gap with a lot hotter cam and heads... The intake works fine, he has it and the cam/heads are going to be the choke point.
RRR & myself have been saying this for years. The OE intake can and will perform really well. Better when it is handled with a grinder for a few minutes on just the port opening.
The heavy weight of the intake isn’t a huge draw back when your in the street just cruising around or having some fun.
The Weiand with its dinky ports works well because of the velocity it keeps. It has its limitations. A well ported Weiand works really well. Just like any other ported intake.
