The LSM stuff is hard to beat, I’ve even used the on car tools on the bench just because the control of the spring “danger zone” is so much more secure. The one I have works on my -1’s and 572-13’s. Jim

64 Dodge Coronet 440. In progress
1998. Dodge Avenger. 8.35@165. 4400 DA
250” Neil and Parks Slip Joint. 7.36@183.
4600 DA
242" Mullis Dragster. 6.90@ 200mph