weiand intake

Have a Weiand intake singleplane has the number 7504 on it and nothing else cant find any info on the net for this anybody know anything about these especially the rpm range
cheers

It's an okay intake for street but for hi horse power race cars you could do better. I always looked at those as more of a look fast intake than a go fast intake. They look like the newer Team G intakes but without the air gap if it's what I'm think it is. The later intake was just an improved version of what you have. Doesn't mean it's not good to use just not like the latest versions but surely a ton better than a stock cast iron unit..

Does it have a notch on the plenum where you could stick a plate to make it a dual plain? If so, I beleave its an old x-cellerator (I think that's how it's spelled) I'm not sure on the rpm range though.

thanks it looks like it is a x-cellerator