Hi im new to this site iv got a 1984 trueno booter 1.6 4age and ive come across this thread and am in need of advice !

im fitting a 272 deg cam to my 86 and ive got the following parts
cam belt
water pump
steam seals
x2 camshafts
pulleys
gasket kit
head bolts

my cams are going to give me 8.1mm of lift will i need to change my shims ?
i dont want to start the job and become stuck and not have all the parts i need !
also can i install them and leave the timming relatively oem so i can get it rolling roaded / tuned ?

thank you in advance