What you got ? Need some pictures of set up. To be used on a GM 12 bolt . My current 60 foot not good enough at 1.62/1.65 range.1967 Cutlass supreme ,de stroked 455, turbo 400,3440 weight,29/9/15 mt slicks,weld light weight pro star wheels 8",373 full spool,Thanks in advance

 

What car, engine, trans, rear ratio, what brand tires, what size tires, what wheel width, what air pressure ?

 

1967 Cutlass supreme ,destroked 455,turbo 400,373 full spool rear gear,MT slicks29/9/15, weld 8" light weight pro star wheels,air pressure 19 pound/20,weight of car 3440. I hope this is enough information.

 

Is that a 425?

 

Man you made my day! No it's not a 425. A destroked 455 is what happens when the stroke is less than the factory 4.25 crank stoke for a 455 engine. My crank stroke is a 4.09 plus bore. Making my engine a 450 ci. With a 455 block. Less stroke less ci.😂 Let's put it this way . I would have liked to put my foot in the machine shop guys rearend so far he would be chewing on the toe of my tennis shoe! He made a bad mistake. I gave him a recipe for a 480 ci and he failed to tell me with the parts I gave him that the pin height on my pistons were wrong. He should have told me to buy different pistons with correct pin height so he could increase stroke with the rods I supplied. To this day I am mad at that machine shop but he is dead. And the shop no longer exist. There is more to this story but no sense in rehashing it all. I was totally left out in the decision process.

 

Can we please get back to the original question ? I don't think anything posted yet deals with my question. I have tried to answer as best I can. Show me what you guys are using to get below 160 on 60 foot hoping for something around 140/150 range. No I am not getting any wheel spin at launch. So evidently I am not using something correctly or need different set up.

 

I have the SSM lift bars (same as these) in place of my rear LCAs, and use Edlebrock adjustable UCAs to dial in pinion angle. Also added aftermarket frame stiffeners that triangulate the upper and lower control arm chassis mounting points. A 442 rear sway ties the lift bars together. Stock springs and shocks for now (future upgrades planned). Probably not the best setup, but it helps on the street.

 

No wheel spin
Need more power or higher stall.
Shocks, suspension parts are to keep the tires planted.

 

It seems logical to me that if you are not spinning tires at launch, Your torque converter stall could be problem OR you have a mess under the hood. Your problem is not traction, its lack of horsepower. And I am leaning toward a miscobobulated engine parts that aren't making power.
.........Just my two cents worth.

 

I have a weld in TRZ ARB.
Although I really didn’t need it for traction but more to level the car at launch, it does plant the tires nicely.
1.48 60ft. It NEVER spins the Drag Radials.

(and I did shorten the down rods)
If you don’t want the weld in I hear the HRbar arb works well.

 

Post your best time slip