[wrogers55]

I also have a Mass-Flo on a 418, really big roller cam, 11:1, 532 HP at the wheels on 93 octane. Starts perfectly without touching the throttle and runs really nice hot or cold. Pretty good manners considering the cam. Took about 1,000 miles to really settle in on the low end. I think it runs in open loop at full throttle, so that was never a learning issue.

One point though. With a big overlap cam, you will have to clean the wires on the mass flow meter once in a while (very carefully, expensive to replace) as the blow back at idle coats them. The more your idle around and the wires get contaminated, it confuses the meter and that sets the injectors and timing off enough to tell. Not a big deal, but must be done on occasion, depending on how much you idle around. I can't imagine you would have this issue with a sensible street cam.

I still don't like the way the TB looks like it chokes down the airflow when you look straight down the body. Mass-Flo says it's good for 1,000 CFM but it doesn't LOOK like it. Dyno says it's probably doing OK, so I guess all is well.

Mass-Flo has a new generation system and computer with much more adjustability. Probably worth a look.

Sure makes a nice driver.

Good luck,