Need on building 350 for k-5 blazer

Hi there,
    With that good choice of cam matched with the moderate compression
    you can be a bit on the conservative side and go for 170 heads +
    a Std Performer manifold. There should be a flat torque plane with
    a 600 cfm carby..You should be able to advance the cam a few degrees
    for some extra initial lift. Check out Single valve springs with narrow
    diameter and 100lbs/330. With or without damper will not matter much.
      A standard early design G.M. H.E.I should be plenty for this moderate
    combo...Good luck and have fun...Skyeking......  

Less can be more at times. I've seen to many combos killed with too much cam and carb  

I believe it has 373 gears in it. not sure about that though. i appreciate the advice so far and if anybody has some more please let me hear it. Thanks.  

I just picked up a set of the rhs vortec of ebay. They've got 2.02 and 1.60 valves and 64cc chambers. I got for just over 700 new.  

thoes are going to help, good luck  

build the 383  

+1.  
Horsepower sells Engines and torque wins races.

383 with those heads will make a great engine. It'll be a good engine without stroking it  

i agree with the other guys my 383 has the aluminum vortec fastburns which i have 2.02 1.60 valves instead of the 2.00 1.55 that they come with so they are basically just an aluminum version of yours.it has 10.2:1 cr and is a very strong little motor making almost 500 ft/lb at 4600  

Thanks for the advice. 500 ft/lb sounds great, what cam are you running?  

comp custom grind hydraulic flat tappet 226/228@050 488/490@050 corrected 1.6 ratio roller rockers make it a 520/522 according to the buildsheet  

yeah lots of torque. hes heads help him alot too.  

You have the parts to make a nice engine just remember not to rush putting it together  

Thanks for the advice everybody.  

Another satisfied customer!