hey guys right now my combo is a 305 roller with a t5 and 3.73 posi, what kind of components will i need for a 350 with a t56 to get low to mid 12's n/a ? a 355 can do it correct? what are the pro's and con's of a 355 vs 383?

 

This has been done and discussed many times. If you do a search youll find more information.

AFR 195s
MiniRam
Long tubes, full exhaust
CC 306
Lots of tuning and lots of traction


A 383 is more expensive than a 355, build the largest engine you can afford, its easier to make more power with more cubes.

Learn as much as possible before buying parts

 

I think that this would get you into the twelves with a 6-speed.
87-later 350 w/10.5:1 compression
GM fastburn heads
Edelbrock RPM air-gap intake
625 cfm Road Demon carb
GM LT4 HOT cam
MSD distributor w/6AL box
A set of headers and a good catback.
Lower control arms and some slicks.

I think that you should be running twelves with a set up like this.

 

i have a full cat-back already and headman 68470 headers, i forget the size, would they be sufficient for the new motor? also i dont want FI, want to keep a carb