Upgraded valve springs...

[getblown5.9]

There are the F1 sportmans and then some others that dont have a name...

I am making about 55psi with the bullet, and can now turn some RPM (4k) and I want to get some springs.

If I buy springs do they usually come with keepers and retainers? talk to me folks, this is new uncharted territory for me.

 

[Jetpilot]

Most springs I know of do not include retainers. Personally I don't like Ti retainers for street vehicles..... Be sure and don't get anything too strong as we are seeing valves break on the 24v due to the small diameter valvestems. Also beware of dual springs as every set I have seen the inner springs breaks. F1 seems to be the best all around spring in my opinion.