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03-15-2011, 10:10 AM
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CC Member
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Join Date: Aug 2009
Location: Edinburg,
TX
Cobra Make, Engine: Everett Morrison, All aluminum small block ford.
Posts: 436
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Not Ranked
Quote:
Originally Posted by Jerry Clayton
I dought that you make anywhere near that much hp
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I have to agree with Jerry. Stock untouched aluminum heads..not much of a gain in hp there. 9:1 compression...mild. Then you put an Edlebrock carb on top of it...that killed any chance youhad of making any hp....lol. Sorry I dont like anything but Holleys.
I would say somewhere in the 350 to 370 range.
Just my 2 cents worth.
Gene
__________________
" If it wont break em loose in 3rd gear, it aint enough power "
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03-15-2011, 10:16 AM
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Senior Club Cobra Member
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Join Date: Dec 2001
Location: Shasta Lake,
CA
Cobra Make, Engine:
Posts: 26,618
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Not Ranked
Quote:
Originally Posted by Z-linkCobra
I have to agree with Jerry. Stock untouched aluminum heads..not much of a gain in hp there. 9:1 compression...mild. Then you put an Edlebrock carb on top of it...that killed any chance youhad of making any hp....lol. Sorry I dont like anything but Holleys.
I would say somewhere in the 350 to 370 range.
Just my 2 cents worth.
Gene
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I have to agree with you on this. I overlooked the Edelbrock carb and mild cam. I had a 900 double pumper Holly on mine and the man that I referenced above used a Holly carb and as I stated, went to a better cam and had the heads done. I think his compression was 10:1 also.
Ron 
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03-15-2011, 12:36 PM
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CC Member
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Join Date: Sep 2006
Location: No city...only 118 residents in Manter,
KS
Cobra Make, Engine: Cobra Auto Works body, Ron Godell Racecars chassis, 1989 Mustang GT 5.0 HO (converted to carb), W/C T-5, 3.73's in a Ford 9" Traction-Loc.
Posts: 812
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Not Ranked
Quote:
Originally Posted by Z-linkCobra
I have to agree with Jerry. Stock untouched aluminum heads..not much of a gain in hp there. 9:1 compression...mild. Then you put an Edlebrock carb on top of it...that killed any chance youhad of making any hp....lol. Sorry I dont like anything but Holleys.
Gene
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Gotta disagree with ya, Gene, about the Holley issue. I had a Holley on my (most likely) box stock 5.0HO in my cobra, it ran poorly, so instead of replacing it with another Holley I let them talk me into putting on an Edelbrock Thunder carb. Now it will run rings around what it use to do. No bog, no sputtering, just solid accelleration.
Having said that, though, I must admit that the IRS return is going to be spent for a "Holley-like" carb, a Quick Fuel model. I think the real issue with the old Holley was that it was just waaaay too big for the engine. It was a 780CFM model, the Edelbrock is only about 575CFM, I think. The Quick Fuel will be in the 600-650 CFM range.
The compression issue is what is keeping your HP down, IMHO.
Cheers from Dugly 
__________________
YD,E./PNB
No names were changed to protect the innocent! 
Last edited by YerDugliness; 03-15-2011 at 12:39 PM..
Reason: added info
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03-15-2011, 01:11 PM
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CC Member
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Join Date: Mar 2011
Cobra Make, Engine: #6101 streetbeast Ingelese stack EFI 351w/t-5 9" 4link 3.55
Posts: 277
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Not Ranked
Jerry how much do you think I have? 175 
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03-15-2011, 01:38 PM
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CC Member
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Join Date: Mar 2011
Cobra Make, Engine: #6101 streetbeast Ingelese stack EFI 351w/t-5 9" 4link 3.55
Posts: 277
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Not Ranked
wbulk, 520 lift 280 duration.
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03-15-2011, 01:45 PM
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CC Member
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Join Date: Mar 2011
Cobra Make, Engine: #6101 streetbeast Ingelese stack EFI 351w/t-5 9" 4link 3.55
Posts: 277
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Not Ranked
I also Googled, How can I get 400hp out of a 351w and came up with several sights that said all you need is an Edelbrock Performer RPM top end package. I also found out HotRod TV did this on an episode and got just over 400 hp.
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03-15-2011, 01:55 PM
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CC Member
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Join Date: Mar 2011
Cobra Make, Engine: #6101 streetbeast Ingelese stack EFI 351w/t-5 9" 4link 3.55
Posts: 277
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Not Ranked
Thanks for your time guys. 
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03-15-2011, 05:10 PM
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CC Member
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Join Date: Nov 2001
Location: Windham,,
Me
Cobra Make, Engine:
Posts: 1,590
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Not Ranked
I too am a Holley addict,been using them since the 60's.They like any hp part needs to be tweaked to the motor it is trying to feed fuel to.Presently have a Davinci 1000cfm dbl pmp on 460 it is incredible out of the box but just a couple of jet sizes too rich,the way Dan sends them.This spring will dail it in.It is very difficult to give an accurate hp number not knowing all the details.
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03-15-2011, 02:43 PM
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CC Member
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Join Date: Aug 2009
Location: Edinburg,
TX
Cobra Make, Engine: Everett Morrison, All aluminum small block ford.
Posts: 436
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Not Ranked
Quote:
Originally Posted by YerDugliness
Gotta disagree with ya, Gene, about the Holley issue. I had a Holley on my (most likely) box stock 5.0HO in my cobra, it ran poorly, so instead of replacing it with another Holley I let them talk me into putting on an Edelbrock Thunder carb. Now it will run rings around what it use to do. No bog, no sputtering, just solid accelleration.
Having said that, though, I must admit that the IRS return is going to be spent for a "Holley-like" carb, a Quick Fuel model. I think the real issue with the old Holley was that it was just waaaay too big for the engine. It was a 780CFM model, the Edelbrock is only about 575CFM, I think. The Quick Fuel will be in the 600-650 CFM range.
The compression issue is what is keeping your HP down, IMHO.
Cheers from Dugly |
Well see...you aint comparing apples to apples. You went down in CFM and got better performance...not the carbs fault that your motor was too small........lol.
Believe me the last thing I want to do is start a war about which carbs are the best. I wouldnt use a quadrajunk for anything but weighing down a crab pot...but I know guys that wouldnt run anything else. Maybe I cant tune anything else...lol.
Gene
__________________
" If it wont break em loose in 3rd gear, it aint enough power "
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