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Wow. What are you doing to those heads! Love these builds. I have a very similar 2.8L build with ITB EFI (AEM Infinity), same compression as you (JE pistons), Carillo rods, twin plug, 39mm/38mm ports, and am running a DC65 cam. Idle is a bit lumpy at 1100-1200 (with 4-5 degrees timing), but it is otherwise very tame just driving around and revs very well to 8k. I may try a DC40 cam as I feel a DC60 or 65 wants a perhaps bit more static compression to work really well. I think a DC40 will have very close to the same rev range with all the light internal components and head flow anyway. DC40 duration is very close to DC60-65 and I feel like my heads may not be flowing way at the top end what optimizes a DC60-65. It's like I hit a wall for fuel requirements at around 7300-7400, as after that my EFI mapping requires to maintain the a/f ratio I'm going for at WOT that I back off fuel a touch to 8k. I really don't know for sure but will undoubtedly give this a shot to satisfy my curiosity and report back.
DC40 @ 1mm 266/249 .490 lift
DC60 271/255 .485 lift
DC65 272/258 .508 lift
stock 'S' cam 268/240 .455 lift
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Last edited by lvporschepilot; 12-29-2019 at 06:36 AM..
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