[HSSS427]

Had a finicky Holley 4150-9379, so replaced the main body with a ProForm, new throttle plate, etc. Still just didn't seem "right." I started looking at Mighty Demons and read some of Don's articles on tuning and such. Gave him a call and he talked me through the pros / cons of various units. He also talked me through setting the right timing advance mix between intial and mechanical, and also sold me some custom advance bushings for my MSD distributor.

Bought a Mighty Demon 750cfm from him. He checked it out, tuned it, and sent it to me. I bolted it on, started the car, and never touched an adjustment other than minor float level adjustment. Car went from struggling to idle at 900 rpm, to now idling at 600 and basically starts right up every time.

That's the kind of service I like. They respond to your calls and emails, will talk through stuff with you, provide technical info, support you after the sale, and the product performs as promised.