Demon 750 on a 12 sec 360 jet size?

G/Day fellas

Just had a 2nd hand Demon 750 given to me to replace my 830 too big annular holley on my 360.
It is on and running fine but seems to be much too rich ,so I was going down in jet sizes then I had a thought to ask you fellas ,someone would have been there and done that with a similar combo such as I have.I did bollow a holley 750 DP with 80's all round which ran a 12.7@109 at the track but have heard the Demons are not the same hence the question.

Question is what jet size or range for the following

750 Might Demon on a
360
10.5 CR
Torker 2 intake
extractors into 2.5 twin
727 3000stall
3.9 gears in a 9''

1970 Valiant Hardtop (Dodge Dart)
Have run 12.7 @ 109 with 1.9 60'
with holley 750DP 80 size jets

Thanks guys in advance

Benton

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