Hi Guys,

I have a 512 stroker and was wondering what people were running for jet sizes in their 6 packs? Motor was dynoed but we were still a little lean at 55 to 6 grand. My builder wanted to leave things alone while the dyno guy was insisting to do more pulls but we were on the dyno for a while and fought a phasing issue and I was pretty happy with the power 610 hp - 649 torque however the builder was shooting for 650 hp. Maybe left something on the table using this intake?

Motor is 11.2-1 compression, Promax cnc'd heads 330 flow on the intake side at 600 lift, Eagle 4.25 crank, Eagle rods 7.1, 260@ .50 solid flat tappet cam-crane-.600 lift, 1.5-1 roller tip ss rockers-crane,CP flat top pistons, 1969 aluminum 6 pack with vacuum secondaries-66 jet on the main and 81 on the end carbs all corners with promax metering plates. I am at 3500 feet above sea level.

Thanks for your input.