What springs come on eddy performer RPM heads

good choice rumble
that one
Voodoo Hydraulic Flat Tappet Cam - Chrysler 273-360 256/262
NOT THIS ONE
https://www.ebay.com/itm/Lunati-04001lk-Cam-Hydraulic-Flat-Tappet-
SBM-204-214-422-444-112-LSA-71977-/191958447651 IDK what the hell this is I do not find it in Lunati Catalog- ANYONE?
Which is your generic made in Detroit White box cam- non Voodoo- don't be shocked- Crower sells it too

UD Harold who designed he Voodoo and the earlier Comp XT line said (and did he learn anything in the meantime?)
VooDoos are true Chrysler profiles, designed for the .904" tappets.
That 213/.454" profile is about 5 or 6 degrees fatter at .200 than the Chevrolet one.
UDHarold

Here's the UDHarold Chevy grind
Lunati Chevy 260 260/260 210/210 441"/.441"
Advertised Duration (Int/Exh): 260/260 ;Duration @ .050 (Int/Exh): 210/220 ;Gross Valve Lift (Int/Exh): .441/.441 ;LSA/ICL: 110 ;RPM Range: 1000-4500
LUnati grinds the chevy grind on a Chrysler Billet in their "high Efficiency" series SKU 10200205 so you have to be careful

one size 4 degrees shorter seat Voodoo but 3 more at .050 and more lift about 5 or 6 degrees fatter at .200 than the Chevrolet one.
60401 256/262 213/220 .454'/.475" The one you picked NM
two sizes shorter seat Voodoo still more lift this is still a fatter lobe than the voodoo chevy
60400 250/256@ seat 208/213@.050 .454"/.454" valve lift, the other choice would build some more cylinder pressure

What is important here is both the Chevy Voodo and the MOPAR voodoo use the same ramps according to UDHarold
ONLY THE TAPPET diameter IS DIFFERENT
so let's [put the
"radical lobe" ghost to bed
NOT ME TALKING don't shoot the messenger
I edited the above post from previous to make it clear that Harold was comparing his chevy Voodoo to the Mopar voodoo and not the "universal mopar as seen in the E-Bay add- (wherever it came from- old part number or???)
Even Harolds Chevy Voodoo KILLS the white box cam (as does Cranes)