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Author
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Topic: Holley Question..
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H8CHEVY
Gearhead Posts: 280
From: Southern Cali
Registered: Jun 2000
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posted 05-20-2003 08:00 PM
   
I just picked up a 750 DP and was wondering if it would be too much carb for my motor?? 302, RPM Heads, air gap intake, 10:1 comp., nothing special. Any ideas if it would or not? If not can anyone give me a guess on jetting and squiter size to start trial and error with? thanks alot.------------------
"In the wise words I was once told bye Jiggy"
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V8 Thumper
Gearhead Posts: 4377
From: Arizona
Registered: Dec 2001
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posted 05-20-2003 08:14 PM
I'm running a 750 DP on my 333 stroker, and it loves it   . I had a 3310 (780cfm vac secondary 4150) on it, and the improvment across the entire powerband is awesome. My deal sounds similar to yours, except for a few more cubes. Mine likes the jetting at 70/80, squirters are 32/35, 6.5 pv in the front block without one in the back. Pump lash is .025.If you've got an auto trans, you'll likely need a loose converter and some short gears. I personally like three pedals 
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1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9" All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html
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bluestreek
Gearhead Posts: 1724
From: Athens,GA
Registered: Jul 2001
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posted 05-20-2003 08:28 PM
It'll work but it runs very rich by the time you get it jetted to feel right. Been there done that. 650 is mo better.  ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank and girdle, 5.4 H-beams, Forged slugs, TFS alum. heads, ported Stealth 8020 intake, Xtreme 274 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)full street trim!
DanH
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H8CHEVY
Gearhead Posts: 280
From: Southern Cali
Registered: Jun 2000
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posted 05-20-2003 08:42 PM
Dan, you dont happen to recall the jet sizes you ended up with in the 750 do you? thanks. ------------------
"In the wise words I was once told bye Jiggy"
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bluestreek
Gearhead Posts: 1724
From: Athens,GA
Registered: Jul 2001
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posted 05-20-2003 09:35 PM
I think I was running 72 in front and 75 in the rear with #31 squirters and 6.5 PV. I also remember having to put .020" wire restrictors in the PV metering circuits to keep it from going rich under hard acceleration but I was using ported stock heads. The 750 PV circuit may work ok with RPM heads. ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank and girdle, 5.4 H-beams, Forged slugs, TFS alum. heads, ported Stealth 8020 intake, Xtreme 274 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)full street trim!
DanH
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