Edelbrock is currently the only company making a TPI base for our cars. Both Accel and TPIS' base are just re-boxed Edelbrock's but at least TPIS goes a step further and cleans up the Edelbrock's casting a bit to smooth out the air flow. Whether or not they do a good enough job to merrit the increase in price remains to be seen.
As others have already stated, the $520 price "Ecklers" is asking for is a total rip-off. They should be ashamed of themselves for selling that intake at such a high cost, when
EVERYONE else is charging $385-$390 for the
EXACT same part! Ditto for what they're asking for the runners. Truly unbelievable they're allowed to get away with ripping people off like that.
There should be a law .....
So, as far as intakes go, the Edelbrock is your only choice at the moment. It's much better than the factory piece (even a fully ported one) but there's still room for improvement. I'm currently porting mine and the difference from "as cast" compared to what I've already ported is night and day. (Stay tuned for picture's when I'm finished....)
As far as runners, if you have plans on upgrading your base, it would be in your best interest to also upgrade the runners as well, because after the base, the runners are the second most restrictive part of your intake. If you want to get the most out of one, you should also do the other.
Top of the line would be the AS&M's but they're also the most expensive, so keep that in mind if your on a budget. Second would be Accel's followed by TPI's (but they're just re-packaged AS&M's with a higher price tag) Then there's Edelbrock's which are I would consider "mid-level" in terms of flow, followed by SLP's which are the cheapest and most plentiful runners on the market. (Though you can port out the SLP's for even more flow if you want)
If you can afford them, I'd recommend AS&M. Best flowing runners on the market-by far and they look stock (that could be considered good or bad) but be prepared to wait, as AS&M no longer carries these in stock and must make them from scratch with each order placed.
If you're looking for performance similar to AS&M's but don't want to spend that much money, go with the SLP's, but be prepared to do a
HUGE amount of porting,cutting and welding to get them to match AS&M's flow. (Whether or not it's worth the effort, depends on who you ask)
If you're not interested in doing any port work yourself, are on a budget and are looking for a good "all-around" set of runners in terms of performance/value, go with the Edelbrocks.
They don't flow as well as the AS&M's, but they'll flow more than the SLP's
plus, they also have a pretty unique look to them. Not too many people have them.
EDIT:
As far as when exactly Edelbrock started supplying its TPI base to Accel, I have no idea. Neither does anyone I've spoken to that carries the so-called "Acell" base. Someone already posted a link to my thread in regards to the subject but it's worth posting again to set the record straight.
http://www.thirdgen.org/techboard/af...ighlight=accel (Anybody thinking of buying an Accel base... save your money!! (56k warning))
Accel no loger makes its own base. They just ship out Edelbrock's base inside a cardboard box that say "Accel" on it and you have to pay extra for it. They don't even give you any stickers or catalogs of their own products and remove the stickers and catalogs that usually come with the Edelbrock base they selling as there own
Cheap bastards!