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I can tell you I never had any issues with my .640 lift roller on the street....My .730 lift was another story though...Keep it under .700. I prefer in the .650 range...




Hey Dragula - what springs are you running ie seat/on the nose OD, inst height etc ?

Thanx






Mine are for the long valve Indy Hemi heads Pacalloy, and they had a bit of seat pressure. If you really need to know, I can dig the info up...


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk