340 cam change, carb rejet suggestions.

QuickDart360 said

I am going to use 292/508 mopar cam. Will put in advanced 4°advanced to get better low end. This cam will have a pretty choppy idle but should get me nice power. Thermoquad i run with .101 primary jets, .145 rear jets and 1966 metering rods. For intake i will be using the holley strip dominator single plane. Rear gear will be 3.91's. Not set up this way yet but plan to do so in the near future. Now have a 280/474 cam & 3.55s but not too impressed. So will experiment with new set up. Just thought I would share.

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You will probably not like the springs on the rod tree with the little vacuum generated by the cam. Remove the springs and allow the cam in the carb base to enrich the mix.

I would rather see 4.30 gears and a 27 inch tire. Something like a 275/60/15 would do.

If this were a drag car, I was say more converter. The car is heavy by 400lbs. @ a min. I’d rather see this at 3200lbs. MAX!

Use AFB rods bent 3/4 of an inch shorter, clip the ends to use for tuning.
I’d also suggest a carb spacer on top of a RPM intake over the single plane. Even more so with gears of 4.10 or less.