hey, arent the stock secondary runners a bit too short? when i measured mines i was lookin at bout 5-5.5" (i maybe rong) and when u do all that math u end up with an overall run of about 9.5inches (mani to valve)... isnt that too short for building power up in the rev range (7500 peak)?
im thinking of doing some thing similar but im considering installing air horns (48mm shaped to oval) on the inside of the mounting plate (same plenum)... do u think i have 2 inches inside the plenum to install em to carry up the length to 7+4inches?
one of the calculators said to make peak power at 7500 w/n1 cams the intake runner length should be 12.33" does that sound credible?