Sorry to sound like a dick but I'm one that would rather fab or build my way through a project if possible than throw money at it. That and known my own biz and have a budget to live within. Now back the question did these perform well??

I would also appreciate some follow up if possible. Interesting thread.

We ended up with 850 HP .... really no issues ...I think Smitty is well over 1000HP with his..

Awesome so still plenty of bottom end and midrange then?

My experience with forced induction is that you can get away with poor intake flow as long as you up the boost :)

I ran a stock gm intake on my twin turbo race car and made 1008 to the rear wheels (about 1250 fly wheel hp) with tons of room left

as long as you have the fuel and good internals .. pully that thing up!!! :)

well mine will be N/A that's why I was asking how they did without boost.

Mine was a very mild NA 540 with out of the box Edelbrock heads and it made 567hp and 630# tq with this intake mod. It still appeared that the intake was killing some power as it had the tendency to run very rich up top and we had to keep taking fuel away to get the A/F numbers right.

well guess im glad im not going quite that big its just going to be a 502 with a 500efi cam roller rockers and the stainless marine manifolds. so it ought to still run pretty good with my combo I hope.

Should work just fine.