Ive got a completely new 468 with a TA 212 cam with a brand new 750 "JET" Quadrajet on it. The motor is great, but it seems to be running out of fuel at WOT once it passes 4200 rpms. The plugs also look pretty lean even after 1000 miles on it. Im wondering if anyone knows what size primary jets a 800+ Quad would have it? I have not opened mine up yet but Im thinking they would be 73 or 75 and Ill need 80's Any thoughts?