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04-19-2005, 07:06 AM
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#1 |
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Moderator
Join Date: Aug 2000
Location: Milan, OH
Posts: 2,699
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Re: high rpm hesitation...need help
38 seems a bit much to me. I've never seen an engine like yours really care for any more than about 34-degrees of timing. That carb is also starting to get to be pretty small for a engine of that size spinning at 5K+. Put a good Holley 750 4150 on it.
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Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!" |
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04-19-2005, 02:50 PM
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#2 |
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Import Slayer
Join Date: May 1999
Posts: 2,241
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Re: high rpm hesitation...need help
I have plans on getting a stealth intake and 750 pretty soon.
Do you think if I have too much timing that it could cause my problem or do you think it's more of a fuel issue now. rwhite65 I have a Mallory electronic dizzy and a blaster 2 coil.
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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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04-19-2005, 11:26 PM
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#3 |
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Ride Hard
Join Date: Oct 2000
Location: Wyoming IL
Posts: 1,094
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Re: high rpm hesitation...need help
Well, I think Jeff Chambers is on to something here the more I think about it, I think your carb is not enough to push that engine. If it is not detonating, I am not so sure it is to much timing.
Ryan
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65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored |
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04-21-2005, 09:47 PM
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#4 |
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Import Slayer
Join Date: May 1999
Posts: 2,241
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Re: high rpm hesitation...need help
I put my friend's 750 holley on it tonight and that made all the difference in the world!! It pulls hard through 6K.
All I need now is the stealth intake.
__________________
'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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