[RTRRacing]

Hi We just did a head & cam change . We bored & stoked the engine to get piston with valve reliefs for piston to valve clearance. we installed PI heads & comp stage 2 cams 270 ah. Now it skips until about 3000 rpm. 150 pounds of compression & no leaks on leak down test. New ford racing 24lb injectors. SCT tuner. Today I installed a dis ignition but the skip is still there. Any ideas?
thanks mike

[jim293]

Welcome lets try your question in here.

[RTRRacing]

Thanks we need some ideas

[mell0]

is your MAF calibrated for the new injectors?

[RTRRacing]

Yes We have not put on our dyno yet because of the skip we are wondering about the cams