redsaleen

I just got my vortech sq trim an i noticed the pulley size is a 3.33 good for 8lbs.I have a smaller 8rib pulley 2 7/8 i believe,should i just stick with the stock pulley or put on the smaller one, what kind of power would i pick up an would i have too change anything to accommodate the extra boost.Also i have a msd digital -6 hooked up to retard my nx .the kit comes with a msd retard ignition so which one should i use both are single stage retard or do i have too use the one that comes with the kit an will they retard the boost of both at the same time.i plan on doing a chip later too be safe.I do have air fuel gauge boost gauge fuel pressure etc.adjustable fuel regulator 255lph pump,kit comes with t-rex inline only thing left stock is block an injectors 24lbs.dynoed 283 and 321 with 75 shot that was retarded 4 degrees.95 cobra trickflow heads, tf intakes, underdrive pullies ,mac l/t headers,70mm tb.nx kit,al drive shaft.etc..will dyno after vortech install hope to be over or close too 400hp.