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Billy Nees · 11-12-2013, 09:59 PM

First rule of any engine combo, find the restriction, build to the restriction. You've got way too much cylinder head and valve area, lots of valve lift and as I recall way too little compression so you can't be giving up cylinder pressure with a big cam. You've got a 350 CFM carb that's not going to make power at any kind of RPM so why spin it up there? It sounds to me like that big cam isn't making any vacuum.

11-12-2013, 09:59 PM	#6
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,499 Likes: 3,601 Liked 7,783 Times in 1,743 Posts	Re: 2 bbl. Motorcraft & a dwell cam First rule of any engine combo, find the restriction, build to the restriction. You've got way too much cylinder head and valve area, lots of valve lift and as I recall way too little compression so you can't be giving up cylinder pressure with a big cam. You've got a 350 CFM carb that's not going to make power at any kind of RPM so why spin it up there? It sounds to me like that big cam isn't making any vacuum. __________________ Billy Nees 1188 STK, SS I'm not spending 100K to win 2K Last edited by Billy Nees; 11-12-2013 at 10:02 PM.