got my phatshaft 62 in today
 

well my new turbo came today im going to throw it in tomorrow along with my 3 piece quick spool manifold. i ordered a 62/65/14 but when it came in it had 62/70/14 engraved on the id tag. would a 62/70 be better than a 62/65. and how well would this turbo work for an upper set for twins?

It depends on what your definition of better is. I don't think it will be much different. EGT's might be a little lower, spoolup will be a little slower

Spool up is slower. Unless you plan to run some crazy sticks a 12 is better suited for a top turbo. Youll love it though, EGTS will be juuuuuuust right.

well i got 5x.014's in there theyre definitely not little injectors. plus i got a p pump swap comin soon so fuel definitely shouldnt be a problem. the main reason i got it was so i could use it as my top turbo when i go to twins in the semi near future. will i see a big difference in performance over the 56mm hx40 i had before?

oh yeah you will like it

Should work well for you.