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Message: <blockquote data-quote="96blak54" data-source="post: 1459289" data-attributes="member: 14727">No e85 but im sure there is fuel with 10% ethanolLike speedway or BP.Using the smallest injector possible is ideal. This way the injector time is extended throughout the stroke instead of dumping it in early in the stroke.We gotta get that exhaust valve opening delayed. I have you a set of lashers im sending you that will do this a little bit but not like it should be. Youll want to target valve opening at BDC or a few degrees afterwards when rpm is high.By the specs youve issued and me assuming the exhaust lobe base circle is standard, your exhaust opening is 45° BBDC. If the base circle is under standard diameter, ex opening will be closer to BDC, but its any ones guess where at.The cams set roughly around 106 - 107 intake centerline, all other valve points make real good assuming the use of stock valve springs with no shims set at standard height.IVO is 4.5 ° BTDCIVC is 36.5 ° ABDC                            EVO is 45.0 ° BBDC                            EVC is 1.0 ° ATDCOverlap is 5.5 °Intake opening 4.5° before tdc and exhaust closing is real good for idle. But when upper rpm come in play , that exhaust valve will float a good 10° before closing, aiding in overlap. Same with the intake closing. Its gonna float a good 15°-20° or more cause its a heavy bastard! Putting intake closing more at midboreIts the 45° BBDC exhaust opening thats killing your power. Their is still 45° more push. Especially with a 1.4" valve thats nearly half the diameter of the piston....meaning their wont be any trouble with exhaust blowdown. With that much ex valve opening, i would assume the cams to be a supercharger grind, but im reminded cam grinders mass grind with ex openings not tailored to one individual build. Superchargers need early ex opening for more exhaust blowdown before pushing the rest out on the exhaust stroke.Taking material from under the lasher is the easiest solution. Either the bottom side of the lasher(not much there) or from the lasher pocket in the head. This will alter exhaust opening by giving the lasher more time to decompress into its stop point. Paired with a sloppy lasher would add more delay. Of course this changes the entire ex valve event and lifts, but in my opinion, its negligible with that 1.4" valve thats known for passing 800hp through.</blockquote>