I'll be running a smarty/mp8 stack and my lift pump will be on this week. Question is, will i be happy with a phat shaft 62 or will a 64 be better for me? Also stock injectors and CP3. Possibly DIY CP3 mod and connector tube modding. I wanna keep an efficient boost level, without it taking off to 40 psi while running cruise control. Any recommendations?

 

ps 62 will be just fine for your current setup. A 64 will be a little more laggy with your current mods.

 

i loved my sps62. worked good...

 

Stick with a 62...

A 64 will spool too slow IMO.

 

id do the SPSII over the PSII, especially with the 6speed

 

I'm asking about it with the smarty and mp8 stack. i dont want to buy one im not going to be happy with but i wanna be able to sustain the boost. The diablo will be gone.

 

Same advice as above, until you get into bigger injectors a quality 62 will give you all you really need. 64 would just be a little more laggy than you will like for 90% of your driving and the extra air that it would be capable of (and you are not fueled heavily enough to really take advange of) is probably not worth it.