Comp Cams Magnum 280h
Pro
Joined: Sep 2002
Posts: 690
Likes: 1
From: near Memphis TN
I have one in my small block. Lopey idle, low vacuum but enough to operate all accesories with no problem. In a big block with anything more than a low compression engine it would probably be considered a mild cam.
Pro
Joined: Feb 2004
Posts: 564
Likes: 0
From: Pittsburgh PA
I had this cam in a 396 BBC punched .090" over. Idled at about 850-900 RPM, had a very lopey idle...
BTW, the top end of the engine was essentially an L-88 setup, but I ran 8.5:1 Compression ratio. Had an M-21 4-speed, and a 3.90 Ford 9" Detroit locker in the back...
How did it perform? Well, I had to feather the clutch when pulling away from stop-lights, or the tires would simply break traction... the rear tires were 275-60/R17, the biggest meats I could fit without chopping the fender-wells, and the thing was a screamer, a serious handful to drive... it was a little soggy below about 2500-2700 RPM, but after that, it'd spin up FAST...
BTW, I had NO problems with the power brakes...
I think you'll like it...
BTW, the top end of the engine was essentially an L-88 setup, but I ran 8.5:1 Compression ratio. Had an M-21 4-speed, and a 3.90 Ford 9" Detroit locker in the back...
How did it perform? Well, I had to feather the clutch when pulling away from stop-lights, or the tires would simply break traction... the rear tires were 275-60/R17, the biggest meats I could fit without chopping the fender-wells, and the thing was a screamer, a serious handful to drive... it was a little soggy below about 2500-2700 RPM, but after that, it'd spin up FAST...
BTW, I had NO problems with the power brakes...
I think you'll like it...
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Thread Starter
Instructor
Joined: Apr 2004
Posts: 233
Likes: 0
From: greenville sc
I'm running flat top pistons, do you guys thing I would have any problems with piston to valve clearance if i went with the 284H over the 280H? Its just something about that lobey idle that just drives me wild.
