Spark plug gap
Still running a mechanical pump.
I think your needle and seat in your rear bowl is plugged....just pull it out and clean it....
I have a similar set up....but only 322 C.I. w2 heads unported, 231 @ .050 purple shaft...1.7 harland sharp rockers. TTI step headers...9.5 dynamic converter (3500 Flash) In a 3000 lb 66 Cuda...When I had exhaust manifolds ( 1 3/4 outlets:!: ) on it with a 650 holley....went high 13's...
Installed TTI HEADERS and a QF annular 750 and the car seemed to slow down half track...( Ran 14's):wack:. I had 68 jets in the front 78 rear.... car was way lean. ( I was going off someone else's setup) Then I put 70 front and 83 rear and it went down to 14 flat but the track closed. My car should run 12's easy when I get this friggin carb/ fuel system dialed in.
I am running a stock Napa (340) fuel pump...I think this is my problem...Maybe yours also.....
I just threw 74 jets in the front and 85 in the rear....Hoping its going to wake up....
You probably fixed yours by now or threw on your other carb....but I thought I would ask..
