godlyxdan

iTrader: (1)

Decided to go Carb setup for my 5.3, heres my list
Goal is to do a Big Cam, High Compression Carb motor and hit it with a 200 shot

5.3 Bored over to a 5.7
Stock LS1 Pistons
Milled 5.3 Heads (aiming for 11:1 scr)
Vic Jr Intake
Tick Polluter Cam
MSD timing control

Hows this setup sound? and what size Carb would you guys suggest for this? I was thinking something in the 650-750 range. Im open to any suggestions

SteelCityMaro

What are your goals for the car ? what is it going in ? what tranny and convertor, rear end , gears ? i would no doubt give pro systems a call they are the best in the business got me hooked up with a 1000 cfm holley for my 402 ls i love it

Pop N Wood

iTrader: (1)

I assume you are starting with the 5.3 because that is what you have? The one question I have is do the 5.3 heads flow as well as say 243's? i thought they had some concessions for the smaller bore. If true I wonder if you would be better served upgrading.

You will need at least a 750 carb. Pro systems stuff is nice but you can save some money sourcing a used 750 and tuning it yourself. You can get a choke that way too if you plan on street driving this car in Indiana winters.

godlyxdan

iTrader: (1)

Goal on Motor is around 425 maybe 580 on a hit of 150, havent decided the size yet. Im looking around for a nice Fox (I know LSX Foxbody, never seen that before right?) lol with a nice 8.8 rear with some 4.10's
I have a buddy with a nice Holley 680 DP that he just doesnt need anymore, willing to sell it cheap so i might go with that

godlyxdan

iTrader: (1)

Oh and Im sticking with the 5.3 heads because it will help with the compression. Once i Bore the 5.3 to 5.7 the 5.3 heads will have the same effect as 5.3 heads on an LS1

ZONES89RS

iTrader: (25)

Heads will need porting, pistons may need fly cutting, a 750 carb at minimum for that setup, will run pretty hard.

SteelCityMaro

I agree with zone minimum of a 750 i just threw pro systems out there becuase they have been really good about answering my questions, and they are the best in the business. Good luck on the build

godlyxdan

iTrader: (1)

got a buddy who has a 650 off of an Old 427 vette, said its been worked over to a 680 and is willing to sell it for $50. He swapped it off his 406 Camaro in favor of a 750 but he said from what he felt since switching them, the 680 would go toe to toe with any 750 out there. For the price i wasnt gonna pass that up, so how does that 680 sound?