Bill C. it made 575 ultimately on a chassis dyno. I ran the A/F ratio from 11:1 - 13:5 and it liked 12:9 the best. I ran the cam from straight up to 8 degree advanced. I liked 8 degree advanced best. That is also where the cranking compression finally went to 160 psi.The current intake manifold is a sheetmetal one that I made with a 1050 dominator carb. I know there is a compromise on the low profile intake but I also know it isn't a 150 hp compromise. In its current state I ran the timing up to 42 before the power started to taper off. I backed it off to 39 to be safe. This is why I feel it could use alot more compression. I have ordered 2 new 800 cfm carbs and will situate them over the port runners and hopefully make that area more efficient. The GOOD news is it lost oil pressure while driving down the street and now has a rod knock, so, now I get to buy new flat top pistons to fix the low compression.
Bill C were you running flat top pistons on that engine?
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