which Weber to use on my 87 yota 22r
 

which Weber to use on my 87 yota truck swb single cab bobbed rear, 4x4, 22R with RV cam ,5 speed manual , stock tcase, 38.5 bogger (i run low range off road) , flowmaster exhaust , 456 gears locked, long tube header .... what weber would fit me best >>34,36,or38mm or 40mm or.....

With 4.56's and 38.5's, I'm gonna say a Holley 4 bbl on a small block v8. You're way under geared for a 22r at that point. The best you could hope for is a 32/36 with a sync-link installed to keep the intake velocity higher than a 38/38 synchronous. Higher intake velocity generally means better low end torque, but I still think you'll be wanting for more power from your engine, not your carb.