So I found a 4k fs with a cam with .435 cam in it? What valve springs would suit this?

Sorry for the noob questions not to familiar with engine work yet

Cam grnders reckon 0.4" is the max for stock springs, but one of the Mods on here has run more lift than that with no problem on stock springs. Might have been Philbey- it was mentioned last year.

 

Crow sell valve springs for higher lifts, or get Holden 202 off some particular motor. Just search Rollaclub for it, its on here somewhere.

Crow cams 4220 $115 double valve springs.

 

http://www.crowcams.com.au/media/catalogues/50.5%20Std%20Replacement%20Springs.pdf