[HiramQuick]

I had an 84 seville with the 8 6 4, engine. The only engine that GM made that was even worse was when they tried to convert the 350’s to diesel.

Funny thing diesels .... I still have a MB 240D with 450k miles. Never a problem with that. Go figure.

Someone on this thread compared the engine to an aircompressor ... that is totally correct. Most of the time if you get intake flow balanced with outflow you hit peak efficiency. But, that is hard. In the 60’s as a hotrodder we always looked to the exhaust .... funny, as an engineer/physicist we would have been wise to take and equal look at restrictive intakes.

A lot of flow technology is going on .. some of it is getting very good. There is always tradeoffs though.

Hey .... I invented a perpetual motion machine ... but ... I can't figure out how to start it.

[nevergore]

"Hey .... I invented a perpetual motion machine ... but ... I can't figure out how to start it. "

Hey...we done figured that out here in Gawgia.....

Just put a pull cord on it and start 'er up like a lawnmower...

[Eric in the Ozarks]

Wife had no idea that this feature was even on her Seville. When she drove away from the dealer after transmission service, the powerful V-8 ran normally up to freeway speed, then suddenly cut to 6, and then 4 cylinders.
She pushed the accelerator for more power and it kicked back to all 8 cylinders and passing gear, nearly ramming the car in front of her. Around the Twin Cities at 5pm drive on the freeway, this is a very bad thing.