I must say "Bravo", that is exactly how I was going to recommend to fix. I was going to do all the bolts. In the Moldmaking industry, we do that sorta thing all the time. The blower intake I made for my 409 is o-ringed on the head surface also. No more intake gaskets at all. I was wondering if you knew the horsepower you were going to make with this engine. After I saw the 100mm TB , I was thinking 750-800 min and I am probably low. Well thought out intake, I must say. Be sure to blueprint your design. It will serve you well in the future for modifications. How did you figure the area and flow needed for your doghouse? I never intend on getting my GN to this level, but I saw a white T that looked to be a real canidate for some serious mods with out hurting the value of my low mile numbers matching original.
Keep up the good work and keep the pics coming. If you get in a jam, PM me. I have been a high tolerance moldmaker for 17 years and have fabricated over 50,000 dollars worth of parts for my 409 and Max wedge car. I am building lower trailing arms right now. I will post pics as I go.
Thanks
Coach ( Donnie also)