Big block 383 build!

petreed150 said

Well with the 906 heads i was gonna use stock intake but now I am gonna get performer rpm to match but I have two carbs to choose from!650 holley dp or holley 3310 750!Have both!Ok will let machine shop check them and change locks but will springs be ok for my cam?

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If you are still using the Comp 280H, then yes the 440 Source valve springs should work. All the 440 Source springs I have tested have the same spring pressures as the Comp Cams 911 springs that are recommended for the 280H cam.

Have the mechanic double check the springs to be sure. I do this on all the 440 Source heads we set up.