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385 fastburn

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385 fastburn

jwq jwq
New User | Posts: 1 | Joined: 11/13
Posted: 11/12/13
07:29 PM

I have a 385 fastburn and want to add a little hp to it without changing camshaft. I have been thinking about adding 1.6 roller rocker arms to it. The new fastburn heads have the beehive springs and was wondering if i should add these also? Which rockers would you buy? aluminum or steel Gm or aftermarket. Motor is in a 1972 nova 700r4 used for weekend cruising.  

Dave632 Dave632
Addict | Posts: 2218 | Joined: 07/08
Posted: 11/13/13
08:40 AM

The 1.6 rockers should be could for a few hp. Are you sure you have enough piston to valve clearance to use them? I always ran aftermarket. The GM are probably OK, however I never used them.  

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 11/15/13
02:12 AM

Hi there,
  If you have room you could try the 400 circle track manifold in GMPP>