So i've been running a Bigs 950hp ported body with 1.42" venturi's my best results were with 76 pri jet 86 sec jet with 4.5 PV resulted in 11.50 et @ 115mph. So I got a smoking buy on a Quick fuel Q series 850hp & now trying to get it setup but was thinking if now I have 1.56" venturi shouldn't I need to increase jet size a bit more?
You may not have bought what you think you did. A Q series 850 (no choke horn, right?) has a 1.40 venturi, not a 1.56". The Q series 950 is still only 1.45. Their 1050 is 1.59 from what I read.
What does the Bigs 950 1.42 venturi look like? Pics?
