I need advice on a carb I'M just about to call summit racing to order a JET-rochester q-jet. there are 3 stages  I would like to get the stage -3 which has an oversized .149 needle and seat assembly for street and strip. my motor is a 400 30 over with a crane cam part nu 284281 here is the spects on cam intake is 315 exhaust 325 valve 473-488 rocker arm ratio is 1.50 the adv duration is 296-304 will this motor handle the stage -3    q-jet thanks for anyones help  

I don't personally have any experience with JET-rochester QJet, but IMO, IF this is a DRAG-ONLY car, the go stage 3.  Otherwise, back down.  

ok thank you