Need some help. I will put this in the drag race section also. I have an aluminum intake and have no idea what it is! It was on the car I have when I purchased it 3 years ago as an E-Bay car. It is for an RB engine, was on the original (to the car when I got it) 440 in the car. It looks similar to the Weiand "Team G", which I am now using. It is a square mount for the 4500 series carbs., four stud holes not eight, open single plane. It is maybe a tad shorter than the Team G. Difference being that between the front and rear rummers, going from head to head mounting points not front to back, are two bosses. On the front one is the Pentastar and in large letters,all capitals, MOPAR. On the back is BB and under that P4532251. I have always assumed that this is the part no. not a casting no.? I have Mopar Performance Catalogs straight back to 2002 and some older ones from 1977 and 1971. Can not find this number anywhere, have written to all sorts of mopar magazines and chrysler themselves with no responses from anyone. I thought it was an M1 but I think M1's are dual plane? Looking for its as designed application, ya know rpm use 1500-6500,2500-8000,etc. For 440 or max wedge, etc. Any help would be nice, in fact if you know, would it be more advisable to use over Team G. Here is what it is on: stroked 440 (505) solid roller,puts out (per dyno) 689HP@6000 and 675 LbFt@4500, has a 1050 Dominator (model 8896) It's driven on street, backed by a 5,000 stall 727. Thanks Jerry
