Ok my heads are almost done being ported and looking great. for those who cant read my sig, the engine is an L36 that is getting a topswap.

so 9.4:1 compression with 4t65e 3.29's
Gen3 M90 with 3.8" will be ported with a northstar to match
Ported heads
105# springs
viaton seals
1.8 SLP roller rockers

Speed daddy headers
2.5" high flow exhaust with magnaflow

i am budgeted for another mod so i was thinking to finish my light weight valve train...
i cant find a price for Ti retainers on any site. and are these modd'ed incase i chose to pull the rockers down the road and go cam?
im leaning toward the SI valves as they have the change to free up more mass then any other part left.
any other suggestions?

would swapping to a MPS 3.8 help with rotational mass be worth it? i would think the vavles would be a bigger savings anyway. and now is the time to do it before the heads go on.

any other ideas? i have about 2 weeks before i have to put the topswap on.