Carb jetting recommendations

[Brooks James]

I would like jetting recommendations
My set up
360 magnum
Stock heads/ block/crank/ rods/ pistons
650 Holley double pumper
340 exhaust manifolds
Mad ignition
Knock off air gap intake
Cam 498/512 lift 274/286 duration

 

[mderoy340]

70/78

 

[tubbedamx]

Jet to elevation and corrected altitude

Boise Idaho were I’m at is 2500t and in the summer months it corrects to 5000 to 7000ft. Which requires a leaner jet.

 

[Demonracer]

What jets are in it now, & what do the plugs look like?

 

[j par]

I have found my innovative wideband O2 sensor to be a good tool...
What do your plug say it wants??..

 

[Brooks James]

I have found my innovative wideband O2 sensor to be a good tool...
What do your plug say it wants??..

Car isn’t on the road yet

 

[AJ/FormS]

I agree with second post; 70/78 should be safe

 

[66Valiant528]

I have to agree with the innovative wide band O2 sensor. 180 bucks. People wanted 500 to dyno and dial in the carb. 180 plus gaskets did it myself. Its the way to go. No guessing.

 

[TT5.9mag]

Find out what jets are stock for that list number. Start there. Run it and check the plugs.