Thinking of going to a bigger TB....what should I choose, Edelbrock, BBK, ???

 

What mods do you have?

Do you have a big am and ported heads? If not, you don't need anything bigger than a 52mm.

 

But again it never hurts to plan for the future, there is a neglible price diff between the sizes.

I have BBK and I like it alot!

 

LT1 6.4L 388

3.750" Eagle Crank
5.7" PM Rods (Floated) ARP Rod Bolts
KB 4.060" Pistons (2 Valve Reliefs) (Race Rings)
Clevitte 77 Racing Bearings
CC468 .584/.579
ARP Main Kit
GM Performance Timing w/ Cloyes Chain
LT4 Lifters
CC Magnum Pushrods
CC Magnum 1.6 RR
Crane Cams 10308 Valve Springs
7 QT. System w/ HV Oil Pump
Pacesetter LT's w/ Summit X-Pipe w/ Bullets (Copper Gaskets)
Ported/Polished Heads (Excellent Flow #'s)
Ported/Polished TB
Ported/Polished Intake
26# Injectors
LT4 Knock Module
G2 Cold Air Intake
K&N Air Filter
Castrol Syntec
180 Thermostat
!CATS
!AC
!AIR
!EGR
TB Bypass
Hurst Short Throw
LCA Relocation Brackets
Autolite XP Iridium .045 Gap
Magnecor 8.5mm Wires
MSD Coil
March Underdrive
ES Motor Mounts
ES Tranny/TA Mounts
LG Racing Spring Kit
Chrome Valve Covers w/ Breathers
Ported MAF

 

If price isnt a concern,go with the AS&M.They are sweet.You could probably use a mono blade.That or the 58mm.You really could use some larger injecters.30# at least.

 

Nice setup

52mm is the biggest you can put on stock manifold bores.
Both BBK and Holley flow very well, I think the Holley look nicer.

If you have (or have had) it bored, you can run a dual 58mm or monoblade.
People who own the monoblade seem to love it. (there are a few recent threads)

Have you dynoed that car or had it tuned for those mods?
I'd be interested in seeing how it runs
You should be well over 400RWHP

I think you should look into 30 or 36# injectors.
Fuel delivery is likely holding you back more than air is right now.
At 388CID, a set of aftermarket (head) castings and a custom cam might make sense as well.

 

I will probaly have my AS&M 58 MM up for sale in the next week or two if you are interested.



Nick

 

I'd definately atleast get a 58mm TB. I picked up a used 58mm BBK on ebay a few weeks ago and felt a noticable increase in power on the top end of my 383.

 

AS&M Monoblade=1300 CFM.

 

Yea I'm getting 50# injectors, going to go to a monoblade probably and see how it helps. Thanks