what size carb for a cammed ls3
06-07-2010, 09:06 PM
#1
On The Tree
Thread Starter
Join Date: Feb 2007
Posts: 156
Likes: 0
Received 0 Likes
on
0 Posts
what size carb for a cammed ls3 well i got my hands on a brand new ls3 with a gmpp carb intake thats going in my nova.its has a comp cam im not sure on the exact specs im at work and dont have them around me but its a..580/.590 lift with somewhere around 224/230 duration at .050 lift.what size carb would be best sutied for this engine?the car has a th350 trans with a 3500-3800 stall 4:11s and wieghs about 3300lbs if that is gonna matter with carb sizing.
06-08-2010, 06:03 AM
#3
Yeah, 750 minimum. You might even be able to go one size up from there to an 830. That is a fairly good sized cam and relatively light vehicle with low gears.
Quick fuel definitely makes some nice carbs. You want something with adjustable air bleeds and their SS model has that. Or just ebay a used double pumper and tap the bleeds yourself.
Quick fuel definitely makes some nice carbs. You want something with adjustable air bleeds and their SS model has that. Or just ebay a used double pumper and tap the bleeds yourself.
06-08-2010, 06:50 AM
#4
On The Tree
Thread Starter
Join Date: Feb 2007
Posts: 156
Likes: 0
Received 0 Likes
on
0 Posts
yeah i dint know if a 750 would be enough....i was looking into a 830hp but im thinking of trying to get a old 4160 4 barrel and buy a proform race main body and coustom tayloring one myself.....just wasnt sure what would be enough for it.
06-08-2010, 08:24 AM
#5
TECH Enthusiast
I say
750 DP mec secs
770 Street Adv vac secs
Or for that kind of power 850 DP but you might have to jet it down some and tune it.... maybe change the front pwr valve out and delete the rear pwr valve and put jet extentions in.....If its just for race or streert/strip
If a cruiser, you would enjoy the 770 or 870 street adv vacum secs a whole lot better.....
The dp's haul azz but suck gas.....
750 DP mec secs
770 Street Adv vac secs
Or for that kind of power 850 DP but you might have to jet it down some and tune it.... maybe change the front pwr valve out and delete the rear pwr valve and put jet extentions in.....If its just for race or streert/strip
If a cruiser, you would enjoy the 770 or 870 street adv vacum secs a whole lot better.....
The dp's haul azz but suck gas.....
06-08-2010, 10:23 AM
#6
On The Tree
Thread Starter
Join Date: Feb 2007
Posts: 156
Likes: 0
Received 0 Likes
on
0 Posts
Are the Holley Street Avengers good carbs?Ive never have known anybody that had one.I had a few holley carbs but switch over to edelbrocks a few years back.They are much more consistant in how they run than a holley IMO.Thought about the edelbrock 800 AVS but havent heard much about them either....this is a street/strip car,more street that track.thinking about going back with a holley cause i havent ran one in awhile and want to see if they are better than the last few i owned.
