Im running a 355 11 to 1, 6" rods, ported LT1 heads flowed 282, 2.02/1.60 valves, 306 cam, 52mm BBK TB, 30# inj, Hooker LT's, True duals, and all the bolt-ons

Is there anything to gain from going from a 52mm BBK/Edelbrock TB to a 58mm TB, and how much do you think i will gain in E.T maybe a tenth?

 

Maybe more but nothing worth the dollars and work. I think you have to machine intake as well for 58s. With the power you have why not look into some traction mods. or how about a full sig im sure there somthing better for you to buy.

 

even with a built motor, i doubt it would even equate to a tenth...would be an interesting (and expensive) test? if ya have the cash...go for it...
but i could think of better things...

 

I have a buddy thats got a 58mm TB and i was going to trade him some parts for it no cash.

The intake is allready been ported to match heads and a 58mm TB


Traction mods:
Adj Hals shocks and springs all the way around (new)
Spohn moly Torque Arm single DS loops
Spohn moly LCA's
Spohn moly PHB
Wolfe mild steel sub frames
Wolfe 6 point moly weld in cage (no swing out's!!)
Wolfe's Drag sway bar (new)
Eibach Drag Launch springs in rear
Mickey Thompson 28x10.5x15

I caint put every thing in the sig