whats the stock cfm on a tbi, ...trying to decide on keeping the tbi or switching to a 600 carb. but not gonna do it if its not really worth the work.....i have the performer manifold and edelbrock 600 carb on my old broke down jalopy 86 camaro, and i got a weird itch to slap it on the 92 rs.....what are the pros and cons of doing this? will i see a difference?

 

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you have to know the carb/tbi differences, c'mon.
stock cfm i beleive is like 425. give or take 50
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the more i know about tbi the more i hate it, ..i dont even want to know jack shiz about the tbi lol...well i think it was like 490 ..im not sure, i just didnt know for sure, in any event it sounds about right, ill swap on a carb for 100 more cfm and a better intake heheh.....plus already having it makes it a plus, ...tile to get the 3 port fuel regulator

 

Actually adding a 600 cfm 4 barrel carb is adding a lot more than 100 cfm!!!!!

4 barrel carbs are flowed at 1.5" Hg. 2 barrels are flowed at 3" Hg.

A stock TBI at ~500 cfm @ 3" Hg is only equal to ~350 cfm @ 1.5" Hg. You'll be nearly doubling your cfm by using a 4 barrel 600 cfm carb.

AJ

 

!!!!!!!! guess im doing that swap friday along with my lt1 cam ..muahahaha.........hope ill see some difference......
ok vortec heads, wrong place to be asking but whatever, ...will they work on the 305....just curious.....

 

Stock TBI cfm is 525.

 

ok back to the beginning, worth it going to carb or not? whats the pros and cons ???

 

for you, go carb