Carb Question

85S10358 · 10-10-2009, 03:32 PM

Just wondering if im running Too big of a carb.... ive got a brand new setup ready to be dropped in my 85 s10
went with a 4 bolt main block got it for 50 bucks...
350
Eagle Kit Steel Crank,Forged Rods,Hyper Pistons
.060 over
Pro Comp Aluminum Heads 2.02 1.94 valves 190cc runners
Flat top +5cc pistons
RPM intake
Comp Cams XE274 cam
TH350 w/3000 stall
3.73s in the rear Mini Spool.....

i was running a 750 vac secondaries before on a similar setup... its Jetted at 70s up front and a metering block conversion out back with 72's...32 shooter with a 50cc pump on it... just wondering if its too much carb i don't want to ruin this new setup... please any advice would help

bgblock427 · 10-11-2009, 01:17 AM

it would come out of the hole faster with a 650. unless your turning over 7200 its a little to big but not much.

srv748 · 10-14-2009, 06:35 PM

I have a 750 double pump on my set up which is a 350/350 and its not that wild. the 750 can work if its tuned in right, but thats the trick. I got lucky that my friend used to build and tune carbs so he did it right. If your gonna go with a lot of pony's then it should be ok. On a normal, not to crazy set up, a 650 usualy works better.

I have a 383 in production and Im going to put that carb on it as well. definately make sure you have the right jetting for your altitude/climate, it does make a difference.

FKNBMPN · 10-14-2009, 11:17 PM

Which accelerator pump cam are you using?

The only thing I would think would be a tad smaller on the jets, maybe a smaller pump nozzle, and anything besides the "brown" accelerator pump cam.

SH-60B · 10-15-2009, 12:05 AM

A 750 is fine for that motor. A 650 could become a restriction.

10-10-2009, 03:32 PM	#1
85S10358 Registered User Age: 24 Join Date: Aug 2004 Posts: 268 Location: User is: OffLine	Carb Question Just wondering if im running Too big of a carb.... ive got a brand new setup ready to be dropped in my 85 s10 went with a 4 bolt main block got it for 50 bucks... 350 Eagle Kit Steel Crank,Forged Rods,Hyper Pistons .060 over Pro Comp Aluminum Heads 2.02 1.94 valves 190cc runners Flat top +5cc pistons RPM intake Comp Cams XE274 cam TH350 w/3000 stall 3.73s in the rear Mini Spool..... i was running a 750 vac secondaries before on a similar setup... its Jetted at 70s up front and a metering block conversion out back with 72's...32 shooter with a 50cc pump on it... just wondering if its too much carb i don't want to ruin this new setup... please any advice would help
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10-11-2009, 01:17 AM	#2
bgblock427 1 Fast S10! 9 Second Club Join Date: Dec 2007 Posts: 301 Location: User is: OffLine	Re: Carb Question it would come out of the hole faster with a 650. unless your turning over 7200 its a little to big but not much.
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10-14-2009, 06:35 PM	#3
srv748 Sox Nation Age: 30 Join Date: Aug 2007 Posts: 36 Location: Tucson AZ User is: OffLine	Re: Carb Question I have a 750 double pump on my set up which is a 350/350 and its not that wild. the 750 can work if its tuned in right, but thats the trick. I got lucky that my friend used to build and tune carbs so he did it right. If your gonna go with a lot of pony's then it should be ok. On a normal, not to crazy set up, a 650 usualy works better. I have a 383 in production and Im going to put that carb on it as well. definately make sure you have the right jetting for your altitude/climate, it does make a difference.
	[Reply w/Quote]

10-14-2009, 11:17 PM	#4
FKNBMPN Registered User Age: 21 Join Date: Jun 2007 Posts: 47 Location: User is: OffLine	Re: Carb Question Which accelerator pump cam are you using? The only thing I would think would be a tad smaller on the jets, maybe a smaller pump nozzle, and anything besides the "brown" accelerator pump cam.
	[Reply w/Quote]

10-15-2009, 12:05 AM	#5
SH-60B Registered Neanderthal Join Date: Nov 2007 Posts: 2,335 Location: Meriden/CT/USA User is: OffLine	Re: Carb Question A 750 is fine for that motor. A 650 could become a restriction.
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