stock 2 barrel carb and pistons good for a 350 sbc build? - Page 3 - Hot Rod Forum : Hotrodders Bulletin Board
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  #31 (permalink)  
Old 01-17-2013, 04:30 PM
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Originally Posted by BuzzLOL View Post
.. Did you get any further on this?
still need to work on heads still not finished with them once done i will start swapping

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  #32 (permalink)  
Old 01-17-2013, 06:12 PM
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A stock 2 barrel intake will not bolt up to a vortec cylinder head
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  #33 (permalink)  
Old 01-18-2013, 06:33 PM
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Originally Posted by Jkingof956 View Post
still need to work on heads still not finished with them once done i will start swapping
Use the Camquest program, find a Comp cam as similar as you can to the Summit cam, and compare the 2-bbl to a 4-bbl. You might be surprised. Or not.

Cam Quest download

Estimated difference in HP between a 2 bbl (350 cfm) and a 600 cfm 4 bbl:

NOTE:
All 2bbl peaks are: hp @ 4000 rpm/tq @ 2000 rpm regardless of cam (of these three).
All hp peaks are at 4000 rpm, regardless of cam or 2bbl or 4bbl carb.
With 4bbl, tq peak is 500 rpm higher w/each cam change.

12-300-4 - HIGH Energy
240H cam w/2bbl: 222 hp @ 4000 rpm/363 tq @ 2000 rpm
240H cam w/4bbl: +26 hp/+9 tq @ 2500 rpm; Avg. power +13 tq/+15 hp

12-305-2 - PURE Energy
246PE cam w/2bbl: 225 hp/356 tq
246PE cam w/4bbl:+30 hp/+14 tq @ 3000 rpm; Avg. power +13 hp/+17 tq

12-207-2 - DUAL Energy
255DEH cam w/2bbl: 231/348
255DEH cam w/4bbl:+30 hp/+21 tq @ 3500 rpm; Avg. power +8 hp/+10 tq

Last edited by cobalt327; 01-18-2013 at 06:43 PM.
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  #34 (permalink)  
Old 01-21-2013, 06:18 AM
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.. Yes, the more powerful the longblock, the more restrictive the 2bbl. is going to seem to be...
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  #35 (permalink)  
Old 03-17-2014, 08:30 AM
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. How's this project coming along now?
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  #36 (permalink)  
Old 03-17-2014, 10:23 AM
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. How's this project coming along now?
My best guess would be that the young man got his *** handed to him on a plate and he doesn't want to talk about it.
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  #37 (permalink)  
Old 03-17-2014, 11:54 AM
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. LOL! Hope not, hope he got a strong running engine together...
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