Quote:
I have been looking at another Hughes cam or maybe Howards. Not really tied to any brand just want to get the most bang for the buck so to speak. What do you guys think about: Hughes: HUG STL6872BS3-8 3 BOLT .421"/.426" LOBE LIFT and 268/272 -108šLSA or Maybe a Howards:HRS-722412-08 Lift .639/.639 with 1.5 rockers 272 int./272 exh. I am running 1.6 rockers and don't want to go so big it ruins the combination.
These cams leave hp on the table. As long as you match the converter to the cam, you can run a LOT more duration than you now have. Look at BGs recommendation, and mine with .200 duration numbers of 200 on the 290 cam and 197 on the mm305. Those cams come close to roller cam specs.
Of the roller cams I have used in motors like this, non were less than 280 @ .050 on the intake, and non were less than 197 duration at .200. This combo of 440-1 heads and 500 cubes work well with that much duration. High lift won't hurt you provided you have clearance and good springs. The extra lift is also what puts you where the heads flow well also. Mildly ported 440-1s don't reach full flow till .700+ lift. A common rule of thumb for best performance is to open the valve .35 times the intake valve diameter which is more than .700 with your heads.
I haven't run them, but the word is the newer Beehive springs are the hot deal, and worth looking into.
Last edited by gregsdart; 02/12/15 11:02 AM.
