i have a 86 IROC. came with the 5.0HO. Now has 355, flat top pistons, 882 heads, muthr thumpr cam, edelbrock torker II intake, and an old holley 600cfm carb. what would be the easier and relatively cheaper route?: buy a new holley carb (one that wasnt tampered with before my ownership), or switch to TBI? if i were to switch to a TBI, how would i go about doing this? and if i should just buy a new carbuerator (perferably holley) what should i get and what size? according to calculations a 350 not built up should have a 523cfm carb. and a completely rebuild race 350 should have 616 roughly i believe. i feel my 600 is too much right now, and i am not sure what else there is. all opinions are greatly appreciated!

 

That cam might be too wild for tbi, they need good vacuum for the map sensor.

 

alright, well ive got about 1000 miles on this build so i wont be rebuilding it for TBI. i guess ill just have to buy a new carb. any suggestions?

 

600 carb should be fine - most everyone running a carb is running a 600

 

a 600cfm carb should be fine for what you're running you just might wanna give it as good a tune as you can. To switch to TBI you'd need a wiring harness, all the sensors, the ecm, and to install an electric fuel pump.