Thread: GM vortec heads
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12-20-2006 06:35 PM #1
GM vortec heads
got the GM vortec head an i wanted to know would this help the 305 gain a lil more power an also thinkin bout the small 50 shot of nos
here is the specs on the head i got from the shop..Combustion Chamber Volume (cc): 64 Intake Runner Volume (cc): 170cc
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12-20-2006 07:09 PM #2
Sounds good.
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12-20-2006 08:58 PM #3
The 64cc head will drop your compression. There are Vortecs for the 305 and I believe they are 58cc.I intend to live forever; so far, so good.
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12-20-2006 09:20 PM #4
Yep, I am going to put a set of 305 Vortecs on my 350 vortec block. Not sure how much more compression it will give, but I know if you do the opposite your CR goes down.
Don
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance