stock diameter springs?? What is the best??

[bmodracer]

What are the best stock diameter SBC valve springs? I have been using Comp 941-16 but lately they havent been holding up too well? I'm thinking they might have changed something with them recently. They have been loosing 10-20lbs seat preasure with only a few nights on them.

thanks!!!

[stpmotorsports]

I like these Howards cams springs. Have had good luck with them in our flat tappet motors.

http://www.competitionproducts.com/Zero-Tolerance-Drop-In-Valve-Spring/products/56/

[fast_crew]

ISKY 235-D tool room springs are hard to beat.

[dave41]

valve springs

no to isky. R.E.V. valves and springs ( race engine valves )