Search results for query: *

Agreed! We are talking about a very mild 440 engine (400HP) the early 440 were rated 375 HP / Carter Four Brl. and 390 Six Pack as delivered. According to the OP it is in a mild street car/daily driver and the 73 440 was an extremely low compression engine ( .120 down from deck as opposed to...

That is exactly Correct. We are talking about a street car that will probably never see the track according to the poster. We design/test/build our own proprietary design header for our Stock and Superstock cars. Most of the benefit of the tuning are lost in a car that has a full exhaust...

My feeble attempt at levity = Dude.

Everything that I state on this forum and others is what I HAVE ACTUALLY TESTED AT THE TRACK! It is actually my honest opinion = I own a dozen performance Mopars and test something most every time I go racing. This is nearly every time the LVMS track is open since it opened in 2000. I stand by...

If you have the HP 73 manifolds, the headers are not much of a difference through the exhaust in my testing. The maintenance can be a pain on a street car that is daily driven with the headers.

We tested 2 1/2 and 3 Inch on our 500 HP 440 and 450HP 360 NO DIFFERENCE on rear wheel Dyno or Track with Flowmaster 40s on both. 2 inch TTIs on 440 and 1 5/8 step to 1 3/4 on 360. Negligible difference uncapped. Turn down before axle.