Take advantage of the large diameter of the GMC lifter. My 286 256@ 50 HOWARD H15 CAM, 615 lift, idled at 600 rpm and made power to 6200. This is a air cooled VW profile. Isky has some nice .875 lifter diameter profiles. They are listed on their web site. Cam profiles have come a long way in the past 30 years. Don't settle for some 1 size fits all profile.
NICE CAR FRANCIS
SAW IT IN ESCONDIDO
Dennis Thornton
