I've got a trick flow plenum with a 70mm bbk tb... it does what I want it to do, I wouldn't pay for the accufab name

 

i have the Proff. Prod. 70mm TB and plenum along with a American Muscle intake spacer,

ive notice a lot better throttle response and a little bit more power up top.

no problems with anything so far

all of that fit with my strut tower brace too....just barely

 

Here is some good TB/plenum flow data from Accufab--I reformatted it for clarity and added some commentary.

The bottom line is that any after market plenum with a 70mm TB will flow plenty of air for any n/a configuration...

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FWIW/IMHO: The Trick Flow and Pro Products plenums are the same castings, with the Pro Products' offering seeming to be a slightly smoother casting, and better machined unit.

 

I beg to differ. I've several dyno sheets comparing different T/B and Plenum combos, and Accufab has always delivered better numbers. Granted there minimal, but they are better than the others.

I like mine, don't regret spend the extra money on on it at all.

 

+1... i agree. I didn't care if it had the bling factor or not, i just wanted the best fitment and performace i could get.

 

I'd like to see those if you could PM them to me--I will add links to them on my site.

The only charts I've ever been able to dig up were either provided by the after market vendors (don't EVER believe something someone trying to sell ytou something says), not back-to-back runs, and always had other changes made in addition to the TB/plenum between runs...

 

I see I left out the word "seen" in my quote. I dont have them saved on my computer.
I will have to do some searching but I'll see what I can do. I seen them awhile ago when I myself was searching which T/B I wanted to purchase.

 

C&L is pretty good... i have the c&l plenum with the bbk tb and i like it.

 

Just stay away from this cluster-fúck...

It's a C&L plenum that Granatelli Motor Sports lobotomized so that they could install "adjustable flow control vanes" into a removable top cover.



Like most of GMS' "designed by the marketing department/cost accountant" offerings it was a real dud and actually hurt performance--I guess it never dawned on the "engineers" at GMS that reducing the effective area of the flow path, AND adding a couple of restrictions to boot, was not likely to increase performance.

GMS originally tried to get over $200 a pop for 'em, but it seems they wholesaled them off as I have seen them for as little as $45 on eBay.

I am disappointed with UPR, that they would even list such a POS doesn't say a whole lot for what they have become...

 

+1 i got the pro products t/b and plenum...works great for me and you cant beat the price i payed like $200 for mine and latemodel restoration has them on sale now for $219.