CARB JETTING ON A BBC?

Engine related questions
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big ken sloat
60ft
Posts: 82
Joined: Mon Mar 03, 2008 5:51 pm
Location: hanover pa

CARB JETTING ON A BBC?

Post by big ken sloat »

HI I HAVE A 468 BBC WITH 13:8:1 CR IM USING A 830 BG GOLD CLAW THAT I USED WITH MY SBC. WHAT WOULD BE A GOOD STARTING POINT AS FAR AS JET SIZES IN FRT AND REAR? THANKS KEN
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adamsvega
330ft
Posts: 439
Joined: Wed Mar 05, 2008 7:53 am

Re: CARB JETTING ON A BBC?

Post by adamsvega »

ken it is more a matter of where you were idea for your combo and what it had . most big duration cams and intakes and ports want alittle rich over stock at sea level . if your pulling the same volume of air at a lower rpm with the bbc and both had big cams start where ya left off . a 468 will have a stonger pull per rpm for throttle response and you may want to decrease the pump cam and nozzles to keep it crisp .
i would start with 84 /90 and 33 nozzles pink cam in late hole
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big ken sloat
60ft
Posts: 82
Joined: Mon Mar 03, 2008 5:51 pm
Location: hanover pa

Re: CARB JETTING ON A BBC?

Post by big ken sloat »

adamsvega wrote:ken it is more a matter of where you were idea for your combo and what it had . most big duration cams and intakes and ports want alittle rich over stock at sea level . if your pulling the same volume of air at a lower rpm with the bbc and both had big cams start where ya left off . a 468 will have a stonger pull per rpm for throttle response and you may want to decrease the pump cam and nozzles to keep it crisp .
i would start with 84 /90 and 33 nozzles pink cam in late hole

thanks adam. i just fired it up yesterday just to hear it. tommorrow i will put a lite on it get it to idle and take it from there. i do know that i have a whole lot smaller jets in it from my sbc, and will set it up like you said then start testing it thanks ken
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adamsvega
330ft
Posts: 439
Joined: Wed Mar 05, 2008 7:53 am

Re: CARB JETTING ON A BBC?

Post by adamsvega »

now if some engineer on hear would give me the formula for pressure drop trough a orifice i could get my shyte running on 1.90$ e-85
ImageImage
i just passed you with my floor sweepings!!!!!
crew chief and top toiler trainer
got alky ? get injected!! !!!!
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