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11-01-2008, 12:05 AM
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#1 |
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Navy Radioman Veteran
Join Date: Jul 2007
Location: Western Kentucky
Posts: 1,350
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How much timing...
Hey guys,
I'm running a '76 454 std bore, with 781 heads 2.190/1.880, Comp Cams XE 274h, matched springs, CC full Roller Rockers, MSD Digital 6, 85551 Dist, HVC Coil (blue), Edelbrock Air Gap, 1407 carb. I've been babying it this summer what little I've driven it just working out the bugs in various systems... It's just a cruizer, not been on the track and probably wont be. But, that last couple times I stabbed it, it wants to studder above 4k rpm, although it pulls well between 3k and 4k... Plus after I've driven it a bit and turn it off for a short period of time, when it starts it grunts like the timing is off. What is a good starting point for the timing on this setup? Thanks, Kenny
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1987 Chevrolet R10 Silverado BBC Build thread - SOLD 1986 GMC Sierra Classic - SOLD 1957 Chevy Step Side - At the Body Shop Daily Driver; 2005 Chevrolet Silverado 4x4 Z71 Stepside |
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11-01-2008, 08:26 PM
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#2 |
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Registered User
Join Date: Jun 2004
Location: Saskatchewan, Canada
Posts: 1,368
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Re: How much timing...
Try 36 total
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Speed is just a matter of money, question is how fast can you afford to go? 8.95@148.97mph all motor haven't tried bottle yet Sponsored by: Getz Oilfield Consulting Hard Candy Customs |
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11-02-2008, 11:35 AM
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#3 |
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Navy Radioman Veteran
Join Date: Jul 2007
Location: Western Kentucky
Posts: 1,350
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Re: How much timing...
Thanks!
I'm gonna work on it today. Kenny
__________________
1987 Chevrolet R10 Silverado BBC Build thread - SOLD 1986 GMC Sierra Classic - SOLD 1957 Chevy Step Side - At the Body Shop Daily Driver; 2005 Chevrolet Silverado 4x4 Z71 Stepside |
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11-02-2008, 12:15 PM
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#4 |
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Registered User
Join Date: Jan 2005
Location: Maysville, OK
Posts: 227
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Re: How much timing...
I run 36-38 in my 468 with 781 Heads on pump gas...
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1972 Chevy Cheyenne Super- Pump gas 496,TH-400, TCI Stall, 3.73's,Ochre & White two-tone w/Olive Interior 1967 Chevy Short Step Drag Truck-Iron Headed 468 Making Memories My momma took me off the bottle years ago..... |
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11-09-2008, 02:04 PM
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#5 | |
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Navy Radioman Veteran
Join Date: Jul 2007
Location: Western Kentucky
Posts: 1,350
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Re: How much timing...
Quote:
When I installed the cam originally, I didn't degree it (correct term?) so how do I get 36-38 total timing when timing marks only show 0-? at the balancer?? Thanks! Ken
__________________
1987 Chevrolet R10 Silverado BBC Build thread - SOLD 1986 GMC Sierra Classic - SOLD 1957 Chevy Step Side - At the Body Shop Daily Driver; 2005 Chevrolet Silverado 4x4 Z71 Stepside |
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