carb spacers

[81ratrodc10]

i was wondering how much differance do carb spacers make is it a noticable incres or not really was thinking about putting one on my truck but didnt know

[xrcr]

They can. But bolting one on and walking away is not how you do it. What intake you are running/ engine combo needs to be considered. Go to Automedia.com they explain it generally pretty well.
xrcr

[81ratrodc10]

the engine is a 305 i was told it is a intake off a 350 not sure were to look to figure it out i know its a aftermarket intake not a stock one with a 4b carb not sure the make of that either should go look

[81ratrodc10]

just went out side the intake says performer rpm and its a holley carb if that helps

[bitchin85]

carb spacers might give you a few horses but they mainly just move your power curve higher or lower in the rpm range.. if u use a four hole spacer, it would give you better low end torque, which is what i have and what is what you want in a full sized truck.. an open spacer will give you more plentum volume and better high rpm horsepower.. all u need is longer studs and new gaskets.. id get a 1 or 2 inch 4 hole and slap it on. youl feel a diferance.. i did

[3r!c84]

the preformer rpm is already a taller intake so i think think a spacer will help any

[81ratrodc10]

is this a good intake i dont know much about intakes new to the engine build aspect

[3r!c84]

the RPM means for higher rpm range..1,500-6,500 the 305 is just not a high rev'er you need just a regular performer intake idle to 5,500 rpm

[81ratrodc10]

it came on the truck when i bought it dont know much about it if it camed or anything i know it moves burns the hell outa the tires lol

[3r!c84]

lol i know my stock 305 burns it pretty good

[81ratrodc10]

so all in all i really dont need really a carb spacer i guess i need a 350 lol

[3r!c84]

Originally Posted by 81ratrodc10

so all in all i really dont need really a carb spacer i guess i need a 350 lol

my dad says that..stop putting money into that 305.just get some balls with a 350


on the cfm.you can look at the numbers on the side of the carb and google it..its probly like a 500. somthing small for that 305

[81ratrodc10]

one other question how do i find out what cfm my holley 4 barrel is

[81ratrodc10]

i was told it is to big of a carb for the motor like to flood some times

[81ratrodc10]

was also thinking of putting in a 454 but it all comes down to the money so i guess for now gotta stick with what i got

[3r!c84]

oh then it might be bigger..my friend has a 650cfm on his 350 and its still too big of a carb

[qu1cks1lver56]

Originally Posted by 3r!c84

oh then it might be bigger..my friend has a 650cfm on his 350 and its still too big of a carb

usually the rule of thumb is you can do 2 cfm per cubic inch, so a 600 is fine on a 305 just tune it right for the weather. I find myself adjusting my idle circuits everytime the temperature makes a drastic change.

[81ratrodc10]

what side would the # be on

[3r!c84]

no idea

[81ratrodc10]

thanx maybe ill go out and try to look now

[81ratrodc10]

just went and looked found # under air cleaner assembly looked it up its a 600cfm thanx for the help

[3r!c84]

thats a little big..but yourwelcome

[81ratrodc10]

thats what the guy i bought it from said but i dont know to much about that sorta thing

[bitchin85]

if you put a 4 hole spacer it will help ur low end torque and youll feel it. i have a 305 headed 350 with a performer eps intake which is about the same motor ugot and i noticed a differance for sure

[81ratrodc10]

you think it will still help with my setup