It's all about the signal the carb see's and how it effects the fuel drawn out of the boosters, I have seen video(can't remember where) of camera's in carb on dyno pulls where you see the fuel coming in, and showing different intakes/spacers/carbs very interesting..keep up the great work !

I dont think EFI will be effected anything like a carb with a spacer, as you are only changing airflow, not how the fuel is being drawn from the carb...

Alot of crazy schit going underneath carb's.

https://www.youtube.com/watch?v=7Iq1B-2paCs

Cool video thanks for sharing

I second that !!

Chaos! Lol

I imagine similar pulses in the exhaust side which makes understanding reversion even easier.

kinda what I saw, but was from top of carb looking down, both really show weird stuff going on...

popcorn ....... I love your threads .....

Finally had a chance to get back to this, made a couple pulls tonight first pull established a baseline for today, same day same Dyno of course check timing check valve lash over previous good runs. Controlled the shop conditions until correction factor was almost dead identical to the other day made a baseline pull, horsepower numbers almost identical to last Saturday. Added a second inch of spacer under the Dominator gained four horsepower, lost 10 foot pounds of torque numbers look like s*** with this Dominator on there. Borrowing a box stock 1050 Dominator off a customer's race truck we have at our shop going to make a couple pulls with it when I get time in the next few days then I'm going to bolt the modded 4150 back on

If I sent you one of these, would it be worth a test