Weiand #8007 intake on a 273 (Several questions)

Ah I do believe YOU recommend the 280º seat duration cam!^^^& Yes my old DRAG CAR dart had 4:10's & wait for it------ a non stock 3800 flash stall converter built for the car. It also had 10.2 c.r with .245/.247 duration @ .050 750 race demon tuned on a .030 over 340. It responded great to the tune of 11.9's & 1.50' 60ft on 28x9 mickey's So I should have had a 950 on that 340 then huh? Please!