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#1 |
Import Slayer
Join Date: May 1999
Posts: 2,241
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![]() I read online that you're supposed to advance your timing until you reach max. vacuum on the gauge and then back the timing down until the vacuum is 1" less
Is this true? I'm trying to get the setup I have dialed in correctly to get a better baseline and then start swapping the parts it needs to hit the 12's
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'82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator. |
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#2 |
Registered Member
Join Date: Feb 2005
Posts: 13
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![]() I have never heard of that method of setting your timing. I have heard of using a vaccum guage to set up the carb, but not timing.
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#3 |
Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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![]() Peckerwood has always been a big advocate of that. I personally have never used it. I have always been fortunate enough to have access to an engine or chassis dyno to figure out what works.
Andy
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88 coupe 91 LX NMRA Pure Street 5120 |
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#4 |
I'd rather be basketweaving
Join Date: Feb 2000
Location: Indianapolis
Posts: 2,551
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![]() that setup you have should be able to hit 12's even with your timing way out of whack
![]() regardless, set the base at about 10-12deg btdc as a baseline and go up from there
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NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft |
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#5 |
Import Slayer
Join Date: May 1999
Posts: 2,241
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![]() well, I found a few things out about my setup that I didn't know.
First, the performer intakes are not much, if any, better than stock. Second, Mallory dizzys have slow advance rates set at the factory. With that said, I'm swapping to a stealth intake with a 750 holley and recurve my dizzy for quicker advance curve. Then..I should be in the 12's....or so I'm being told. Stay tuned because if not, you might see a black, 1982 GT with a worked 351w for sale in the classifieds!!(with a fist hole through the windshield) ![]()
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'82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator. |
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#6 |
It's a lot like a race car
Join Date: Aug 2000
Location: Meridian, MS
Posts: 4,130
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![]() I'd go with a Vic Jr intake over a Stealth. Just my opinion
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1987 Buick T-type 1998 HD Electra Elide |
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#7 |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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![]() My dad has a stealth on his 383 stroker. Seems to work really well for him.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
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#8 |
Registered Member
Join Date: Mar 2003
Location: Saint Louis, MO
Posts: 634
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![]() I'd much rather tune the torque/power curve on a dyno also.
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Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/ |
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#9 | |
Import Slayer
Join Date: May 1999
Posts: 2,241
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![]() Quote:
Brian
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'82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator. |
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#10 | |
Import Slayer
Join Date: May 1999
Posts: 2,241
|
![]() Quote:
__________________
'82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator. |
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#11 |
Registered Member
Join Date: Mar 2003
Location: Saint Louis, MO
Posts: 634
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![]() Know anyone with a G-Tech?
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Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/ |
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