240 gal horizontal direct heat smoker help needed?

[timmy7649]

240 gal 5'x3' with 2- 2 1/2 inch intakes and 4 2" exhaust. is it to much exhaust. was thinking going down to 2- 2". and should i extend them up? here is some pics.

 

[jonnyrod]

Your pics show as being deleted? What size firebox do you have? If the firebox is 1/3 the size of the smoke chamber you will need at least 5  4" intakes at the firebox and 39" of 6" exhaust stacks. This is assuming a lot so more info is needed on your dimensions.