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Recently I bought a 221/221 558/558 112 LSA MTI T1 cam off of a friend. What valve springs and retainers would you recommend? Also any rough guess as to HP gain? Heres a list of current mods:
LG pro headers
Random 3" cats
SLP loudmouth
Honker intake
Port & polished TB
Tuned
Put down 342 HP and 348 TQ
I'll also be installing an UD pulley and LS6 manifold at the time of the cam. Just wondering what I should hopefully expect out of this. Thanks!
BYUNSPEED has the PAC 1518's on sale, they are nitrided beehive springs that will allow you to retain the stock seals/retainers. They would be perfect and offer a long life. I would expect around 40 hp.