onebadgmc i was impressed with the Tq Curve on that ENGINE of Yours ....that was one Pulling SOB wasn't it ?
thats what i love about Blowers...the freakin constant TQ curve
HotRod i ran the BB-2 on my 565ci and it was down a tad on HP but it made More TQ being a little smaller head ( valve Size)...i had alot of Port work done to them...No flow bench work.
Best to my knowledge the valve size difference on the bb-2 head VS the bb-2 extra is the 2.25 VS 2.30 on the intake valve.
as GMC said above the Blower will get the air thru them...just get your cam profile right on the lobe seperation so it can let the Boost out.
IMO you would be throwing that 1k away....and even if it did pick it up 30/40 hp...i doubt very seriously you would even notice it...Your gonna have enough problems planting what you got.... :shock:
But if you just determined to spend some Money on Heads...sell the ones you got, take the 1,000 cash and Buy you some BB-3 Oval Ports..
other then this...save the cash....Maybe take that 1k and spend it toward some R/D With Some E-85.........Pro-systems swears they got the carb deal figured out....
105 octane for 2.10 a gallon.....hey why not ?...i am going this route with a blow thru procharger
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "