I agree with that. I am surprised the difference in peak HP between the Quick Fuel 780 and the Demon 1050 was only about 10 HP, if I am reading Mark's dyno sheet correctly.

I was planning on a Holley 4150 1000cfm for my 470. Could probably handle more than that, but it is a street car.

Mark, what is your initial timing? [/quote]

The peak power for the QF 780 was 571.17 torque was 604.19
The Best Demon pull was 584.98 HP and 621.32 trq.
We didn't check the initial timing, just the total. We started @ 35* and backed it down to 33* and picked up a little less than 6 HP. and 12 lbs ft. trq. with the 780 QF
All pulls with the Demon were @ 33*.
For some reason the first full pull on the engine made power to 6,000, and was climbing. It never increased in power there again. All done climbing @ 5750 RPM. Tired springs? shruggy I don't know... It has set with the valves adjusted since 2014, I just turned it over by hand occasionally.

Mark

Last edited by Hemi Allstate; 10/31/17 06:30 PM.

1996 Ram 1500 Sport
1968 road runner
1952 Sears Allstate licensed, pump gas, Hemi 5.98 @ 115.73 1.33 60 ft. The best is yet to come. Painless Performance / Street RODDER magazine Top 100 for 2019