what spring do i need?

junkyardhero said

one piece KD:

[URL]https://www.manciniracing.com/kidoresp1.html[/URL]

three piece KD:

[URL]https://www.manciniracing.com/marakidoresp.html[/URL]

Click to expand...

If he has proper 70 340 three piece linkage that's not the right spring, that spring is for big blocks... the 340 spring connects to a tab on the upper rod.. As seen in this picture..