Even 400 hp would make most happy.
Factory j 2.02 heads with a 3 angle valve job , kb 107 piston 360 short block with a .500 lift 284 duration cam ,headers, rpm intake w/750 will make about 390-400 hp on a bad day.
I don’t know what cam your making a reference to but I remember the old MP create engine. 360/380. Same as above with there 284/.484 cam. I know it dyno’d more than 380, but not sure if it creates 400. Probably did.
The 280/.480 cam will make about 360hp @ 9.0-1, headers, 750....
