I am trying to get some weight and adjustability in the front of my B Body drag car. I hope this group can help me.
I have Magnum Force Upper control arms and HDK bolt on upper coil over mounts.
I have lots of shocks set up for coil over mounts from my dirt track days and I want to use those if possible. Easy ups, hold downs, 50-50, etc...I have the QA1 shock specs from HDK so I’m good as far as compressed/ extended lengths so I’m good there, but I do not think 3 in travel is enough for what I want to do. What I I need help/ advise with is a beginning spring rating. I want to know what spring I need to get stock ride height.
Does anyone know a starting weight rating, or a usable calculator? I have done a google search for a conversion calculation but evidently I am not smart enough to use them.

My thoughts are to remove the torsion bars and use the shocks/ coil overs to tune the front rise/ fall rates without changing ride heights. It’s worth a try I think.

Thanks in advance.

This is a handling forum, not too sure the savvy is here for a drag setup. The racing forum is probably more likely to have people there that know about that. Essentially, what you want to do is opposite of what we do.

Maybe it should be elsewhere but all I need is a coil spring rate to get stock ride height. Regardless of Racing type stock ride height is stock ride height?
Thanks for the advise.

Try the same wheel rate as stock then. You'll have to do the math to figure out what spring rate you'll need from your coil to match the torsion bar spring rate and no they will not be the same.

https://www.hypercoils.com/spring-rate-calculator/

Use the inverse of the motion ratio times the stock wheel rate for the new spring rate.

Thank you