gsr build trying again wanting suggestions

[jap_racer1]

alright yall might have seen me with the other post gsr with super high compression ctr pistons did do the job but they were 2 close to the top of the head! i had a valve break off and fall down in there and it tore up ever4ythings magicallay the block is fine the head is garbage and the piston was shattered! so i am looking for help on my build!

bottom end

i am using the stock crank

i am also using the stock rods

what pistons?

either type r or pr3 or p30

rod bearings i am going to use acl superglides

main are staying the same ones that are in there they only have 60k on them

head

I have already bought a gsr head with port and polish and angle valve job
$400

i am using type r cams

i have sual springs off of my last head

i have two sets of retainers stock and titanium

i only have on set of valves which are stock the stainless from my last build r in the shithole

which retainers should i use i heard the titanium tend to drop valves

and should i buy new valves or what??

I AM MAKING A CAR JUST TO TAKE TO THE TRACK FOR FUN OR JUST TO DRIVE ON WEEKENDS!!

with this build i have a stock p72 ecu obd2 and i also have a p28 chipped crome with obda to obd1 conversion harness hoping to run stock ecu but if i need to get tuned its fine!!

let me know what you think all suggestions are fine!!!