I am running the 318/5.2 whiplash roller cam HUG-HMR0814ALN-7

my 440 flat tappet whiplash cam HUG-SMC3245BL

I used comp 901-16 springs with the whiplash roller.

I used Hughes springs matched to the 440 whiplash cam.

I plan to run a 360 whiplash roller cam HUG-HMR2228ALN-7 in a 360 headed 318 with comp 901-16 springs.
adding a 2500 TC

best thing on the flat tappet whiplash cams is they are 165$ each.

my first engine build in 92' was around 2500$. since then I have used 300$ JY engines with a cam swap and have had more fun with 3 JY engines for about the same amount of $ since 02'

400$ on the rollers but no break in woes with them. now that roller 318/360 are 20+ yrs old they are cheap enough to play with.