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Topic Review (Newest First)
06-28-2007 10:50 AM
Koolaid You're other post says a top notch engine shop built and dyno tested this thing - go by what they used to achieve best power.
06-28-2007 10:48 AM
Jmark
Quote:
Originally Posted by chevymastermind
does everyone agree with him? because i got my timeing set at 33* advanced right now. does that sound about right?

sounds good to me too. A good place to start anyways. You can add vac advance for cruising if you wish but start with an adjustable can and start LOW!! 3 or 4 degrees to begin with.

If you live in a hot climate, that might be pushing it a little. Cooler climate with lower engine temps you can up it a tad and see how it does.
06-28-2007 10:35 AM
CorkyE The type of heads you have will be a major determining factor on timing. Chevy's new crate engines with vortec and fast burn heads like 32* - 34* total (w/o vacuum) where as older design heads can use 36* and even a bit more. I found my Eddy RPM's sweet spot at 35*. This is something you are going to have to experiment with to get the best performance. If you have conventional heads, start with 36* total and work up/down from there. IMHO
06-28-2007 09:01 AM
crash70rs What did you have it set at on the dyno? Your making some real good numbers.. I'd leave it there!
06-28-2007 05:50 AM
baddbob 16-18 initial would be my guess with that cam, set your total for about 38-40 with the basic smogger type head.
06-28-2007 01:11 AM
chevymastermind does everyone agree with him? because i got my timeing set at 33* advanced right now. does that sound about right?
06-28-2007 12:16 AM
techinspector1 I start with 10-12 initial at the crank and curve the distributor for total initial/centrifugal of 36 all in by 2,800 with run of the mill heads. With quick-burn heads, I'll back it off to around 34 total or maybe less.
06-28-2007 12:08 AM
chevymastermind
What Should i set my timing at?

This is my new 350 engine. it has a Dyno proven horsepower rating of 370.21 @ 5662RPM and 409.1 Ft. Lbs. of tourque @ 3900RPM and with only 9.23:1 Compresion ratio! and it has over 400 Ft. Lbs. of tourque from 3,200-4,300 RPM!

Engine specs:
350 4bolt main bored .030 to 355cid
steal crank (3.48" stroke)
Sealed power flat top -5cc flat top (9.23:1 compresion ratio)
Speed pro piston rings
Stock rods with Milodon chromoly Rod bolts
all felpro gaskets
heads are chevy heads with a stage 2 port job
Manley Stainless steel valves 2.02int. 1.50 ex.
Comp cams roller tip rocker arms 1.6 ratio int. 1.5 ratio ex.
z-28 valve springs
Comp cams XE268 camshaft
Moroso Chrome oil pan
Moroso Chrome valve covers
comp cams 84000 series lifters

what should i set my timing at?

thank you all in advance!!!

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