heres my set up:
b18c1 bored to 81.5
9:1 pistons +eagle rods
full arp
skunk2 intake
edelbrock tb
skunk2 cam gears
greddy turbo kit
still debating between ectune and neptune
would upgrading my valves/retainers/springs give me any kind of gains with this set up or is it kinda overkill?

 

You'll see more power with bigger valves and a mild port job.


I would get neptune

 

already port and polished the head, sorry thoguth i put that in there.
cool thanks