i wanna ditch the cc carb and dist. i've heard wonders about demons, and found that teh 625 road demon isn't too expensive and has a choke. some questions i've got: how hard to tune? do the jets interchange with holley jets? if not, where does one get them and how expensive are they? Would i be better off with a different carb? i'd like to hear everyones opinions.

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'84 Berlinetta, LG4, 700R-4, starwars interior, falling headliner, T/A t-handle shifter, trans cooler, more to come in time and $$ www.hipergp@aol.com

 

Easy to tune,no different than a Holley.All of the service parts (jets,power valves,squirters,etc) interchange with Holley.So wherever you can get Holley parts you can use them on the Demon.Have a friend with the Road Demon..nice carb.I run a 750 Speed Demon on my Z and love it.I would recommend it,IMO

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1982 Z28:355,4 Speed,Lots of bolt ons

 

IN my opinion a Holley carburator is the way to go. If tuned correctly you will be very happy with the perfomance. Also around my area everybody deals with Holleys and availability for any demon part would not be plenty.

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383 86 Camaro Z28 ---1/4 mile e.t>12.89@108.8mph,,
10.5:1compression Dart Pro 1 Aluminum heads 215cc>2.05/1.60 valves,400 steel crank,cam specs:224/234 at 050 525/525 lift,3500 stall converter,shift kit,4.10 gears,770 Holley Avenger,Victor Jr. Intake,true dual exh,Hooker headers with 40 series Flowmasters,MSD Coil and Module.ALSO SECOND GEN Z28---mods:454 BBC,.546 max lift(doug herbert cam ) 750 Holley vac sec. ,Edelbrock Performer manifold,Holley electric fuel pump,Hooker headers,Flowmaster mufflers,beefed up 700r4 tranny, 3.90 gears, powertrax unit, B&M console shifter.

 

If your are going to be using Holley parts why not just get a HOlley?

 

the only holley experience i have is with the two that my dad had on an olds 455- the family car. I believe that they both were 650 smog legal- not quite sure the first started on fire and was replaced with another. This car started horribly in cold weather, ran bad if it was too hot or too cold, but when it was juuuuussssst the right temp ran fine. Do all holleys have these bad traits? this is my great fear.

 

It's a matter of tuning and adjustment. But, an automatic choke does wonders for the problem you describe. Even a manual choke, for that matter.

Long, long time ago, I had a 650 DP on an over-sexed 302 in my '57. It had no choke (guy who built the engine had this thing about maximizing airflow). I was stationed at Fort Carson near Colorado Springs, arriving in November - I'd give it two full pumps, nurse the throttle for a minute after it fired, then drive away. This worked even at -5 degrees F (after I replaced the battery, that is). It was tuned at 1500' altitude, by the way - probably helped it run cold at 6035' Fort Carson.

A choke would have done wonders. Maybe even rejetting, but I didn't know much in those days...

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. 2-1/2" cat-back, ZZ3 intake, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 CC system w/'87 LB9 block, ZZ3 cam, ported World 305 heads, Hooker 2055 headers, 3" Catco cat & 3" catback, restalled TC, Spohn SFCs).
57 Bel Air, my 1st car. '66 396, 9.7 CR forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 600 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).

 

A friend has a 750 Demon on his 440 Super
Bee and is very happy with it.